Top  -  Requisiti  -  Introduzione  -  Installazione  -  Configurazione
Trasformazioni  -  FAQ  -  Sviluppatori  -  Riconoscimenti  -  Traduttori

phpMyAdmin 2.5.5-dev Documentazione Ufficiale


Requisiti


Introduzione

Con phpMyAdmin è possibile gestire tanto un intero server MySQL (richiesto accesso da super-user) quanto un singolo database. Per quest'ultimo avrai necessità di configurare correttamente un utente MySQL che abbia privilegi di lettura/scrittura esclusivamente sul database interessato. Troverai tutte le informazioni sul caso in un qualsiasi manuale MySQL.
phpMyAdmin può:

(*)  phpMyAdmin supporta la compressione (formato Zip, GZip -RFC 1952- o Bzip2) per l'esportazione di dump e CVS con PHP4 >= 4.0.4 e supporto Zlib (--con-zlib) e/o supporto Bzip2 (--con-bz2).


Installazione

NOTE: phpMyAdmin non applica metodi di protezione speciali al database server MySQL. E' compito dell'amministratore del sistema controllare che i permessi al database MySQL siano correttamente configurati. E' possibile utilizzare la pagina "Privilegi" di phpMyAdmin per queste operazioni.

Segnalazioni per gli utenti Mac: se sul tuo computer hai una versione di MacOS precedente a OS X, StuffIt decomprimerà i file in formato Mac.
In tal caso dovrai risalvare con BBEdit TUTTI gli script di phpMyAdmin in formato Unix prima di trasferirli sul server, ciò in quanto PHP non sembra andare daccordo con il metodo di formattazione del testo Mac per l'EOL ("\r").

Segnalazioni sulla documentazione: come avrai notato, questo documento è in formato .php3. Per favore modifica l'estensione in .php se stai usando un kit (distribuzione) con questo tipo di estensione.

Installazione rapida:

  1. Per prima cosa scegli, e scarica, un kit di distribuzione con file aventi estensione (.php3 o .php) a seconda del server interprete Web/PHP utilizzato.
  2. Decomprimi (untar o unzip) la distribuzione (accertati di estrarre anche le sotto-directory): tar -xzvf phpMyAdmin_x.x.x.tar.gz nella directory root documenti del tuo server Web. Se non hai accesso diretto alla cartella root dei documenti, inserisci i file in una directory sulla tua macchina locale, e, dopo il passo 3, trasferisci questa cartella sul server Web utilizzando, ad esempio, il protocollo FTP.
  3. Apri il file config.inc.php3 con il tuo editor predefinito e cambia i valori relativi all'host, all'utente, alla password ed alla modalità di autenticazione a seconda del tuo ambiente di lavoro. Ad esempio, "host" identifica il server MySQL. Inserisci inoltre il valore corretto per l'$cfg['PmaAbsoluteUri']. Consulta la sezione Configurazione per ulteriori informazioni sui valori impostabili.
  4. Raccomandiamo di proteggere la directory in cui è installato phpMyAdmin (a meno che non si tratti di una intranet o che si preferisca un metodo di autenticazione basato su HTTP o cookie) ad esempio con HTTP-AUTH (all'interno del file .htaccess). Nella sezione FAQ sono riportate note aggiuntive sull'argomento.
  5. Aprite il file <www.il-tuo-host.com>/<cartella-di-installazione>/index.php3 nel browser. phpMyAdmin dovrebbe visualizare una finestra di benvenuto ed i tuoi database o la finestra di dialogo per l'autenticazione se hai scelto HTTP o cookie come metodo di autenticazione.
  6. Per l'intero set di nuove funzioni (bookmark, commenti, cronlogia SQL, generazione PDF, trasformazione contenuto campi ed altro...) è necessario creare un gruppo di tabelle nel database. Dai un'occhiata alla cartella in scripts/, all'interno della quale dovresti trovare un file chiamato create_tables.sql. (se stai utilizzando Windows server presta particolare attenzione alla FAQ 1.23). Puoi fin da ora utilizzare phpMyAdmin per creare rapidamente le tabelle. Ricorda che sono necessari privilegi particolari (di amministratore) per la creazione di database e tabelle. Dopo aver importato il file create_tables.sql, specifica un nome per le tabelle all'interno del file config.inc.php3. Le direttive disponibili per questo scopo sono riportate all'interno della sezione Configurazione.

Aggiornamento di una versione esistente:

Le modalità di autenticazione:

Modalità di autenticazione 'http':

Modalità di autenticazione 'cookie':

Modalità di autenticazione 'config':


Configurazione

Note per gli utenti Mac: PHP sembra non gradire molto il carattere di fine linea tipico dell'ambiente Mac ("\r"). Assicurati di utilizzare l'opzione che non si avvalga di caratteri terminali* a fine linea ("\n") nell'editor di testo utilizzato per la creazione o la modifica degli script.

I dati di configurazione sono raccolti all'interno del file config.inc.php3.

$cfg['PmaAbsoluteUri'] string
Qui puoi impostare l'indirizzo completo (URL) della versione installata di phpMyAdmin. Ad esempio http://www.your_web.net/path_to_your_phpMyAdmin_directory/.

phpMyAdmin necessita di questa impostazione per i requisiti del protocollo HTTP, secondo RFC2616, sezione 14.30.

Non dimenticare di inserire il carattere 'slash' a fine indirizzo. L'URL deve contenere i caratteri consentiti per un indirizzo valido Web. E' importante prestare attenzione anche ad eventuali caratteri in maiuscolo/minuscolo poichè alcuni server, soprattutto Linux/Unix, fanno distinzione sulla capitalizzazione delle lettere.

A partire dalla versione 2.3.0, è possibile anche lasciare vuoto questo campo, poichè il programma tenterà automaticamente di rilevare le impostazioni richieste. Dettagli aggiuntivi sulle impostazioni sono riportati nel file di configurazione stesso.

In alternativa, l'impostazione può essere completetata dinamicamente come in questi esempi: 
$cfg['PmaAbsoluteUri'] = (!empty($_SERVER['HTTPS']) ? 'https' : 'http') . '://'
                       . $_SERVER['HTTP_HOST']
                       . (!empty($_SERVER['SERVER_PORT']) ? ':' . $_SERVER['SERVER_PORT'] : '')
                       . substr($_SERVER['PHP_SELF'], 0, strrpos($_SERVER['PHP_SELF'], '/')+1);

    o

$cfg['PmaAbsoluteUri'] = (!empty($_SERVER['HTTPS']) ? 'https' : 'http') . '://'
                       . $_SERVER['SERVER_NAME']
                       . (!empty($_SERVER['SERVER_PORT']) ? ':' . $_SERVER['SERVER_PORT'] : '')
                       . substr($_SERVER['SCRIPT_NAME'], 0, strrpos($_SERVER['SCRIPT_NAME'], '/')+1);
Nota che l'array $_SERVER non esiste in PHP < 4.1.0. Prova quindi a sostituire $_SERVER con $HTTP_SERVER_VARS o $GLOBALS in questo caso.

$cfg['PmaAbsoluteUri_DisableWarning'] boolean
Come opzione predefinita, nel caso in cui sia rilevato dal sistema un URI assoluto ed il campo $cfg['PmaAbsoluteUri'] fosse vuoto, verrebbe visualizzato un messaggio di avvertimento. Sei hai provveduto a testare già il rilevamento automatico, e funziona perfettamente con la configurazione corrente, puoi impostare la variabile in modo tale che non visualizzi più l'avvertimento.

$cfg['PmaNoRelation_DisableWarning'] boolean
A partire dalla versione 2.3.0 di phpMyAdmin, sono state rese disponibili nuove funzionalità per agevolare l'uso di tabelle principali / esterne (consultate $cfg['Servers'][$i]['pmadb'] per ulteriori dettagli).
Se avete già provato la configurazione ma non sembra funzionare, controllate la "Struttura" della pagina del database dove volete eseguire l'impostazione. Troverete successivamente un indirizzo che vi illustrerà le motivazioni per le quali si è deciso di disattivare queste funzionalità.
Se preferite invece non utilizzare feature come queste impostate la variabile su TRUE: quando fatto questo messaggio non sarà più visualizzato.

$cfg['blowfish_secret'] string
A partire dalla versione 2.5.2, auth_type per i 'cookie' utilizza un algoritmo blowfish per la criptazione della password.
Se almeno una delle configurazioni sul server usa la modalità 'cookie' per auth_type, inserire in questo campo la frase che sarà utilizzata dall'algoritmo blowfish.
$cfg['Servers'] array
Fin dalla versione 1.4.2, phpMyAdmin supporta l'amministrazione di più server MySQL. Per questo motivo, è stato implementato un array $cfg['Servers']- in cui salvare le informazioni di login per server differenti. Il primo $cfg['Servers'][$i]['host'] conterrà il nome dell'host (hostname) del primo server, il secondo $cfg['Servers'][$i]['host'] il nome dell'host del secondo server e così continuando... Se invece il server da gestire è unico, lasciate vuoto il campo hostname delle altre voci $cfg['Server']-.

$cfg['Servers'][$i]['host'] string
Il nome dell'host o l'indirizzo IP address del server $i-th MySQL. Ad esempio: localhost.

$cfg['Servers'][$i]['port'] string
Il numero della porta del server $i-th MySQL-. La porta predefinita è 3306 (lasciare vuoto). Se utilizzate "localhost" come hostname, MySQL ignorerà questa porta e le relative connessioni al socket, quindi per connettersi utilizzando una porta differente da quella predefinita inserire "127.0.0.1" o in alternativa il nome dell'host reale in $cfg['Servers'][$i]['host'].

$cfg['Servers'][$i]['socket'] string
Il percorso del socket da utilizzare. Lasciare il campo vuoto per applicare le impostazioni predefinite.
Per utilizzare un socket è necessario avere PHP 3.0.10 o superiore.

$cfg['Servers'][$i]['connect_type'] string
Il tipo di connessione da usare con il server MySQL. Le opzioni disponibili sono: 'socket' & 'tcp'. L'impostazione predefinita è 'tcp' poichè è quella comunemente più diffusa sui server MySQL, mentre i socket non sono supportati su alcune piattaforme.

Per la modalità socket, è necessario caricare il server MySQL che deve essere in esecuzione su un server Web.

$cfg['Servers'][$i]['compress'] boolean
E' possibile adottare sia un protocollo compresso per connessione al server MySQL sia un protocollo senza compressione (sperimentale).
Le impostazioni di compressione del protocollo sono possibili con PHP >= 4.3.0.
$cfg['Servers'][$i]['controluser'] string
$cfg['Servers'][$i]['controlpass'] string
Utilizzando la modalità di autenticazione HTTP o basata su cookie (modalità d autenticazione 'config' da phpMyAdmin 2.2.1), dovrete fornire i dettagli di un account MySQL valido che abbia privilegi di esecuzione della SELECT nelle tabelle mysql.user (tutte le colonne ad eccezione di "Password"), mysql.db (tutte le colonne) & mysql.tables_priv (tutte le colonne ad eccezione di "Grantor" & "Timestamp") . Questo account sarà utilizzato per controllare quale database sarà visto dall'utente durante il login.
Per ulteriori informazioni consultate la sezione installazione dell'appendice "Usare l'autenticazione HTTP".

Nota: provando ad accedere a phpMyAdmin con questo "controluser", potreste ottenere messaggi di errore, a seconda dei privilegi posseduti con tale "controluser". phpMyAdmin non supporta un login diretto con "controluser".

Nelle versioni precedenti la 2.2.5, si definiva questo account come "stduser/stdpass".

$cfg['Servers'][$i]['auth_type'] string ['http'|'cookie'|'config']
Specifica l'autenticazione da adottare per il server tra: config, cookie o http .
Per ulteriori informazioni consultate la sezione "Usare le modalità di autenticazione".

$cfg['Servers'][$i]['user'] string
$cfg['Servers'][$i]['password'] string
Si tratta della coppia nome utente/password che phpMyAdmin utilizzerà per connettersi al server MySQL. La coppia non è richiesta utilizzando metodi di autenticazione come HTTP o cookie e dovrebbe essere vuota.

$cfg['Servers'][$i]['only_db'] string or array
If set to a(an array of) database name(s), only this(these) database(s) will be shown to the user. Since phpMyAdmin 2.2.1, this/these database(s) name(s) may contain MySQL wildcards characters ("_" and "%"): if you want to use literal instances of these characters, escape them (I.E. use 'my\_db' and not 'my_db').
This setting is an efficient way to lower the server charge since the latter does not need to send MySQL requests to build the available database list. But it does not replace the privileges rules of the MySQL database server. If set, it just means only these databases will be displayed but not at all other databases can't be used.

An example of using more that one database: $cfg['Servers'][$i]['only_db'] = array('db1', 'db2');
$cfg['Servers'][$i]['verbose'] string
Only useful when using phpMyAdmin with multiple server entries. If set, this string will be displayed instead of the hostname in the pull-down menu on the main page. This can be useful if you want to show only certain databases on your system, for example.


$cfg['Servers'][$i]['pmadb'] string
A partire dalla versione 2.3.0 phpMyAdmin offre numerose funzioni per lavorare agevolemente con tabelle primarie / esterne (straniere). Per utilizzarle, ad esempio la funzione bookmark (segnalibro), avrete bisogno di tabelle speciali caratterizzate da una struttura predefinita, come illustrato in seguito.

See the Quick Install section in this document for a quick way of creating those tables. Also, if you are using a Windows server, read FAQ 1.23.

If you are the only user of this phpMyAdmin installation, you can use your current database to store those special tables; in this case, just put your current database name in $cfg['Servers'][$i]['pmadb'].

If you are setting up a multi-user phpMyAdmin installation, you will need to create a new database and setup special privileges, so, as superuser:



$cfg['Servers'][$i]['bookmarktable'] string
Since release 2.2.0 phpMyAdmin allows to bookmark queries. This can be useful for queries you often run.

To allow the usage of this functionality you have to:

$cfg['Servers'][$i]['relation'] string
Since release 2.2.4 you can describe, in a special 'relation' table, which field is a key in another table (a foreign key). phpMyAdmin currently uses this to
The keys can be numeric or character.

To allow the usage of this functionality the superuser has to:
Please note that in the current (2.3.0) version, master_db must be the same as foreign_db. Those fields have been put in future development of the cross-db relations.


$cfg['Servers'][$i]['table_info'] string
Since release 2.3.0 you can describe, in a special 'table_info' table, which field is to be displayed as a tool-tip when moving the cursor over the corresponding key.
This configuration variable will hold the name of this special table. To allow the usage of this functionality the superuser has to:
Usage tip: Display field.


$cfg['Servers'][$i]['table_coords'] string
$cfg['Servers'][$i]['pdf_pages'] string
Since release 2.3.0 you can have phpMyAdmin create PDF pages showing the relations between your tables. To do this it needs two tables "pdf_pages" (storing information about the available PDF pages) and "table_coords" (storing coordinates where each table will be placed on a PDF schema output).

You must be using the "relation" feature and have a table of PDF pages (see $cfg['Servers'][$i]['pdf_pages']) to create PDF output.

To allow the usage of this functionality the superuser has to:
Usage tips: PDF output.


$cfg['Servers'][$i]['column_info'] string
Since release 2.3.0 you can store comments to describe each column for each table. These will then be shown on the "printview".

Starting with release 2.5.0, comments are consequently used on the table property pages and table browse view, showing up as tool-tips above the column name (properties page) or embedded within the header of table in browse view. They can also be shown in a table dump. Please see the relevant configuration directives later on.

Also new in release 2.5.0 is a mime-transformation system which is also based on the following table structure. See Transformations for further information. To use the mime-transformation system, your column_info table has to have the three new fields 'mimetype', 'transformation', 'transformation_options'.

To allow the usage of this functionality the superuser has to:

$cfg['Servers'][$i]['history'] string
Since release 2.5.0 you can store your SQL history, which means all queries you entered manually into the phpMyAdmin interface. If you don't want to use a table- based history, you can use the JavaScript-based history. Using that, all your history items are deleted when closing the window.

Using $cfg['QueryHistoryMax'] you can specify an amount of history items you want to have on hold. On every login, this list gets cut to the maximum amount.

The query history is only available if you use the JavaScript-based query window, see $cfg['QueryFrame'].

To allow the usage of this functionality the superuser has to:
$cfg['Servers'][$i]['verbose_check'] string
Because release 2.5.0 introduced the new MIME-transformation support, the column_info table got enhanced with three new fields. If the above variable is set to TRUE (default) phpMyAdmin will check if you have the latest table structure available. If not, it will emit a warning to the superuser.

You can disable this checking behavior by setting the variable to false, which should offer a performance increase.

Recommended to set to FALSE, when you are sure, your table structure is up to date.

$cfg['Servers'][$i]['AllowDeny']['order'] string
If your rule order is empty, then IP authentication is disabled.

If your rule order is set to 'deny,allow' then the system applies all deny rules followed by allow rules. Access is allowed by default. Any client which does not match a Deny command or does match an Allow command will be allowed access to the server.

If your rule order is set to 'allow,deny' then the system applies all allow rules followed by deny rules. Access is denied by default. Any client which does not match an Allow directive or does match a Deny directive will be denied access to the server.

If your rule order is set to 'explicit', the authentication is performed in a similar fashion to rule order 'deny,allow', with the added restriction that your host/username combination must be listed in the allow rules, and not listed in the deny rules. This is the most secure means of using Allow/Deny rules, and was available in Apache by specifying allow and deny rules without setting any order.

$cfg['Servers'][$i]['AllowDeny']['rules'] array of strings
The general format for the rules is as such:
      <'allow' | 'deny'> <username> [from] <ipmask>

If you wish to match all users, it is possible to use a '%' as a wildcard in the username field.
There are a few shortcuts you can use in the ipmask field as well:
     'all' -> 0.0.0.0/0
     'localhost' -> 127.0.0.1/8

Having an empty rule list is equivalent to either using 'allow % from all' if your rule order is set to 'deny,allow' or 'deny % from all' if your rule order is set to 'allow,deny' or 'explicit'.

For the IP matching system, the following work:
xxx.xxx.xxx.xxx (an exact IP address)
xxx.xxx.xxx.[yyy-zzz] (an IP address range)
xxx.xxx.xxx.xxx/nn (CIDR, Classless Inter-Domain Routing type IP addresses)
But the following does not work:
xxx.xxx.xxx.xx[yyy-zzz] (partial IP address range)

$cfg['ServerDefault'] integer
If you have more than one server configured, you can set $cfg['ServerDefault'] to any one of them to autoconnect to that server when phpMyAdmin is started, or set it to 0 to be given a list of servers without logging in.
If you have only one server configured, $cfg['ServerDefault'] MUST be set to that server.

$cfg['OBGzip'] string/boolean
Defines whether to use GZip output buffering for increased speed in HTTP transfers.
Set to true/false for enabling/disabling. When set to 'auto' (string), phpMyAdmin tries to enable output buffering and will automatically disable it, if your browser has some problems with buffering. IE6 with a certain patch is known to cause data corruption having enabled buffering.

$cfg['PersistentConnections'] boolean
Whether persistent connections should be used or not (mysql_connect or mysql_pconnect).

$cfg['ExecTimeLimit'] integer [number of seconds]
Set the number of seconds a script is allowed to run. If seconds is set to zero, no time limit is imposed.
This setting is used while importing/exporting dump files but has no effect when PHP is running in safe mode.

$cfg['SkipLockedTables'] boolean
Mark used tables and make it possible to show databases with locked tables (since 3.23.30).

$cfg['ShowSQL'] boolean
Defines whether SQL-queries generated by phpMyAdmin should be displayed or not.

$cfg['AllowUserDropDatabase'] boolean
Defines whether normal users (non-administrator) are allowed to delete their own database or not. If set as FALSE, the link "Drop Database" will not be shown, and even a "DROP DATABASE mydatabase" will be rejected. Quite practical for ISP's with many customers.

$cfg['Confirm'] boolean
Whether a warning ("Are your really sure..") should be displayed when you're about to loose data.

$cfg['LoginCookieRecall'] boolean
Define whether the previous login should be recalled or not in cookie authentication mode.

$cfg['UseDbSearch'] boolean
Define whether the "search string inside database" is enabled or not.

$cfg['IgnoreMultiSubmitErrors'] boolean
Define whether phpMyAdmin will continue executing a multi-query statement if one of the queries fails. Default is to abort execution.

$cfg['VerboseMultiSubmit'] boolean
Define whether phpMyAdmin will output the results of each query of a multi-query statement embedded into the SQL output as inline comments. Defaults to TRUE.

$cfg['AllowArbitraryServer'] boolean
If enabled allows you to login to arbitrary server using cookie auth.

NOTE: Please use this carefully, as this may allow to access MySQL servers behind firewall where your http server is placed.

$cfg['LeftFrameLight'] boolean
Defines whether to use select-based menu and display only the current tables in the left frame (smaller page). Only in Non-Lightmode you can use the feature to display nested folders using $cfg['LeftFrameTableSeparator']

$cfg['LeftFrameTableSeparator'] string
Defines a string to be used to nest table spaces. Defaults to '__'. This means if you have tables like 'first__second__third' this will be shown as a three-level hierarchie like: first > second > third. If set to FALSE or empty, the feature is disabled. NOTE: You shall not use this Separator in a table name at the beginning or end of a table name, or multiple times after another without any other characters in between.

$cfg['LeftFrameTableLevel'] string
Defines how many sublevels should be displayed when splitting up tables by the above Separator.

$cfg['ShowTooltip'] boolean
Defines whether to display table comment as tool-tip in left frame or not.

$cfg['ShowTooltipAliasDB'] boolean
If tool-tips are enabled and a DB comment is set, this will flip the comment and the real name. That means, if you have a table called 'user0001' and add the comment 'MyName' on it, you will see the name 'MyName' used consequently in the left frame and the tool-tip shows the real name of the DB.

$cfg['ShowTooltipAliasTB'] boolean
Same as $cfg['ShowTooltipAliasDB'], except this works for table names.

$cfg['ShowStats'] boolean
Defines whether to display space usage and statistics about databases and tables or not.
Note that statistics requires at least MySQL 3.23.3 and that, at this date, MySQL doesn't return such information for Berkeley DB tables.

$cfg['ShowMysqlInfo'] boolean
$cfg['ShowMysqlVars'] boolean
$cfg['ShowPhpInfo'] boolean
$cfg['ShowChgPassword'] boolean
Defines whether to display the "MySQL runtime information", "MySQL system variables", "PHP information" and "Change password " links or not for simple users at the starting main (right) frame. This setting does not check MySQL commands entered directly.

Please note that to block the usage of phpinfo() in scripts, you have to put this in your php.ini:
    disable_functions = phpinfo()

Also note that enabling the "Change password " link has no effect with "config" authentication mode: because of the hard coded password value in the configuration file, end users can't be allowed to change their passwords.

$cfg['SuggestDBName'] boolean
Defines whether to suggest a database name on the "Create Database" form or to keep the textfield empty.

$cfg['ShowBlob'] boolean
Defines whether BLOB fields are shown when browsing a table's content or not.

$cfg['NavigationBarIconic'] boolean
Defines whether navigation bar buttons contain text or symbols only.

$cfg['ShowAll'] boolean
Defines whether an user should be displayed a "show all (records)" button in browse mode or not.

$cfg['MaxRows'] integer
Number of rows displayed when browsing a result set. If the result set contains more rows, Previous/Next links will be shown.

$cfg['Order'] string [DESC|ASC|SMART]
Defines whether fields are displayed in ascending (ASC) order, in descending (DESC) order or in a "smart" (SMART) order - I.E. descending order for fields of type TIME, DATE, DATETIME & TIMESTAMP, ascending order else- by default.

$cfg['ProtectBinary'] boolean or string
Defines whether BLOB or BINARY fields are protected from edition when browsing a table's content or not. Valid values are:
- FALSE to allow edition of all fields;
- blob to allow edition of all fields except BLOBS;
- all to disallow edition of all BINARY or BLOB fields.

$cfg['ShowFunctionFields'] boolean
Defines whether MySQL functions fields should be displayed or not in edit/insert mode.

$cfg['CharEditing'] string
Defines which type of editing controls should be used for CHAR and VARCHAR fields. Possible values are: Default is old behavior so input.

$cfg['ZipDump'] boolean
$cfg['GZipDump'] boolean
$cfg['BZipDump'] boolean
Defines whether to allow the use of zip/GZip/BZip2 compression when creating a dump file or not.

$cfg['CompressOnFly'] boolean
Defines whether to allow ont the fly compression for GZip/BZip2 compressed exports. This doesn't affect smaller dumps and allows to create larger dumps, that won't fit otherwise in memory due to php memory limit. Produced files contain more GZip/BZip2 headers, but all normal programs handles this correctly.

$cfg['LightTabs'] string
If set to True, do use less graphically intense tabs on the top of the mainframe.

$cfg['PropertiesIconic'] string
If set to True, will display icons instead of text for db and table properties links (like 'Browse', 'Select', 'Insert', ...).
Can be set to 'both' if you want icons AND text.
When set to False, will only show text.

$cfg['PropertiesNumColumns'] integer
How many columns will be utilized to display the tables on the database property view? Default is 1 column. When setting this to a value larger than 1, the type of the database will be omitted for more display space.

$cfg['DefaultTabServer'] string
Defines the tab displayed by default on server view. Possible values: "main.php3" (recommended for multi-user setups), "server_databases.php3", "server_status.php3", "server_variables.php3", "server_privileges.php3" or "server_processlist.php3".

$cfg['DefaultTabDatabase'] string
Defines the tab displayed by default on database view. Possible values: "db_details_structure.php3", "db_details.php3" or "db_search.php3".

$cfg['DefaultTabTable'] string
Defines the tab displayed by default on table view. Possible values: "tbl_properties_structure.php3", "tbl_properties.php3", "tbl_select.php3" or "tbl_change.php3".

$cfg['MySQLManualBase'] string
If set to an URL which points to the MySQL documentation (type depends on $cfg['MySQLManualType']), appropriate help links are generated.
See MySQL Documentation page for more information about MySQL manuals and their types.

$cfg['MySQLManualType'] string
Type of MySQL documentation:

$cfg['DefaultLang'] string
Defines the default language to use, if not browser-defined or user-defined.
See the select_lang.inc.php3 script to know the valid values for this setting.

$cfg['Lang'] string
Force: always use this language (must be defined in the select_lang.inc.php3 script).

$cfg['DefaultCharset'] string
Default character set to use for recoding of MySQL queries. This must be enabled and it's described by $cfg['AllowAnywhereRecoding'] option.
You can give here any character set which is in $cfg['AvailableCharsets'] array and this is just default choice, user can select any of them.

$cfg['AllowAnywhereRecoding'] boolean
Allow character set recoding of MySQL queries. You need recode or iconv support (compiled in or module) in PHP to allow MySQL queries recoding and used language file must have it enabled (by default only these which are in Unicode, just to avoid losing some characters).

$cfg['RecodingEngine'] string
You can select here which functions will be used for character set conversion. Possible values are:
Default is auto.

$cfg['IconvExtraParams'] string
Specify some parameters for iconv used in charset conversion. See iconv documentation for details.

$cfg['AvailableCharsets'] array
Available character sets for MySQL conversion. You can add your own (any of supported by recode/iconv) or remove these which you don't use. Character sets will be shown in same order as here listed, so if you frequently use some of these move them to the top.

$cfg['GD2Available'] string
Specifies whether GD >= 2 is available. If yes it can be used for MIME transformations.
Possible values are:
Default is auto.

$cfg['LeftWidth'] integer
Left frame width in pixel.

$cfg['LeftBgColor'] string [HTML color]
$cfg['RightBgColor'] string [HTML color]
The background colors (HTML) used for both the frames.

$cfg['RightBgImage'] string
The URI of the background image used for the right frame. It can be absolute as well as relative from your phpMyAdmin directory.
$cfg['LeftPointerColor'] string [HTML color]
The color (HTML) used for the pointer in the left frame (does not work with Netscape 4).

$cfg['Border'] integer
The size of a table's border.

$cfg['ThBgcolor'] string [HTML color]
The color (HTML) used for table headers.

$cfg['BgcolorOne'] string [HTML color]
The color (HTML) #1 for table rows.

$cfg['BgcolorTwo'] string [HTML color]
The color (HTML) #2 for table rows.

$cfg['BrowsePointerColor'] string [HTML color]
$cfg['BrowseMarkerColor'] string [HTML color]
The colors (HTML) uses for the pointer and the marker in browse mode (does not work with Netscape 4).
The former feature highlights the row over which your mouse is passing and the latter lets you visually mark/unmark rows by clicking on them.
You can disable both of these features by emptying the respective directive.

$cfg['TextareaCols'] integer
$cfg['TextareaRows'] integer
$cfg['CharTextareaCols'] integer
$cfg['CharTextareaRows'] integer
Number of columns and rows for the textareas.
This value will be emphasized (*2) for SQL query textareas and (*1.25) for SQL textareas inside the query window.
The Char* values are used for CHAR and VARCHAR editing (if configured via $cfg['CharEditing']).

$cfg['LongtextDoubleTextarea'] boolean
Defines whether textarea for LONGTEXT fields should have double size.

$cfg['TextareaAutoSelect'] boolean
Defines if the whole textarea of the query box will be selected on click.

$cfg['CtrlArrowsMoving'] boolean
Enable Ctrl+Arrows moving between fields when editing?

$cfg['LimitChars'] integer
Maximal number of Chars showed in any non-numeric field on browse view. Can be turned off by a toggle button on the browse page.

$cfg['ModifyDeleteAtLeft'] boolean
$cfg['ModifyDeleteAtRight'] boolean
Defines the place where modify and delete links would be put when tables contents are displayed (you may have them displayed both at the left and at the right). "Left" and "right" are parsed as "top" and "bottom" with vertical display mode.

$cfg['DefaultDisplay'] string
$cfg['HeaderFlipType'] string
There are 3 display modes: horizontal, horizontalflipped and vertical. Define which one is displayed by default. The first mode displays each row on a horizontal line, the second rotates the headers by 90 degrees, so you can use descriptive headers even though fields only contain small values and still print them out. The vertical mode sorts each row on a vertical lineup.

The HeaderFlipType can be set to 'css' or 'faked'. When using 'css' the rotation of the header for horizontalflipped is done via CSS. If set to 'faked' PGP does the transformation for you, but of course this does not look as good as CSS.

$cfg['DefaultPropDisplay'] string
When editing/creating new columns in a table all fields normally get lined up one field a line. (default: 'horizontal'). If you set this to 'vertical' you can have each field lined up vertically beneath each other. You can save up a lot of place on the horizontal direction and no longer have to scroll.

$cfg['ShowBrowseComments'] boolean
$cfg['ShowPropertyComments'] boolean
By setting the corresponding variable to TRUE you can enable the display of column comments in Browse or Property display. In browse mode, the comments are show inside the header. In property mode, comments are displayed using a CSS-formatted dashed-line below the name of the field. The comment is shown as a tool-tip for that field.

$cfg['UploadDir'] string
The name of the directory, where SQL files have been uploaded by other means than phpMyAdmin (for example, ftp). Those files are available under a drop-down box when you click the database name, then the SQL tab.

Please note that the file names must have the suffix ".sql" (or ".sql.bz2" or ".sql.gz" if support for compressed formats is enabled).

This feature is useful when your file is too big to be uploaded via HTTP, or when file uploads are disabled in PHP.

Please note that if PHP is running in safe mode, this directory must be owned by the same user as the owner of the phpMyAdmin scripts.

$cfg['docSQLDir'] string
The name of the directory, where docSQL files can be uploaded for import into phpMyAdmin.

Please note that if PHP is running in safe mode, this directory must be owned by the same user as the owner of the phpMyAdmin scripts.

$cfg['SaveDir'] string
The name of the directory, where dumps can be saved.

Please note that the directory has to be writable for user running webserver.

Please note that if PHP is running in safe mode, this directory must be owned by the same user as the owner of the phpMyAdmin scripts.

$cfg['Export'] array
In this array are defined default parameters for export, names of items are simmilar to texts seen on export page, so you can easily identify what they mean.

$cfg['RepeatCells'] integer
Repeat the headers every X cells, or 0 to deactivate.

$cfg['QueryFrame'] boolean
$cfg['QueryFrameJS'] boolean
$cfg['QueryFrameDebug'] boolean
$cfg['QueryWindowWidth'] integer
$cfg['QueryWindowHeight'] integer
$cfg['QueryHistoryDB'] boolean
$cfg['QueryWindowDefTab'] string
$cfg['QueryHistoryMax'] integer
All those variables affect the new query frame/window. When $cfg['QueryFrame'] is set to true a new frame is embedded on the left with a small area. Clicking on that results in opening a direct interface to enter SQL queries.

When $cfg['QueryFrameJS'] is set to true, clicking on that link opens a new custom sized browser window ($cfg['QueryWindowWidth'], $cfg['QueryWindowWidth'] - both integers for the size in pixels). If set to false, clicking on the link only opens the SQL input in the mainframe.

The usage of the JavaScript query window is recommended if you have a JavaScript enabled browser. Basic functions are used to exchange quite a few variables, so most 4th generation browsers should be capable to use that feature. It currently is only tested with Internet Explorer 6 and Mozilla 1.x.

If $cfg['QueryHistoryDB'] is set to TRUE, all your Queries are logged to a table, which has to be created by you (see $cfg['Servers'][$i]['history']). If set to FALSE, all your queries will be appended to the form, but only as long as your window is opened they remain saved.

When using the JavaScript based query window, it will always get updated when you click on a new table/db to browse and will focus if you click on "Edit SQL" after using a query. You can suppress updating the query window by checking the box "Do not overwrite this query from outside the window" below the query textarea. Then you can browse tables/databases in the background without losing the contents of the textarea, so this is especially useful when composing a query with tables you first have to look in. The checkbox will get automatically checked whenever you change the contents of the textarea. Please uncheck the button whenever you definitely want the query window to get updated even though you have made alterations.

If $cfg['QueryHistoryDB'] is set to TRUE you can specify the amount of saved history items using $cfg['QueryHistoryMax'].

The query window also has a custom tabbed look to group the features. Using the variable $cfg['QueryWindowDefTab'] you can specify the default tab to be used when opening the query window. It can be set to either 'sql', 'files', 'history' or 'full'.

The variable $cfg['QueryFrameDebug'] can be used by developers for easier future feature integration.

$cfg['BrowseMIME'] boolean
Enable MIME-transformations.

$cfg['MaxExactCount'] integer
Determines for how large tables phpMyAdmin should get exact row count by SELECT COUNT. If approximate row count is smaller than this value, SELECT COUNT will be used, otherwise only value returned by SHOW TABLE STATUS.

$cfg['WYSIWYG-PDF'] boolean
Utilizes a WYSIWYG editing control to easily place elements of a PDF page. By clicking on the button 'toggle scratchboard' on the page where you edit x/y coordinates of those elements you can activate a scratchboard where all your elements are placed. By clicking on an element, you can move them around in the pre-defined area and the x/y coordinates will get updated dynamically. Likewise, when entering a new position directly into the input field, the new position in the scratchboard changes after your cursors leaves the input field.
You have to click on the 'OK'-button below the tables to save the new positions. If you want to place a new element, first add it to the table of elements and then you can drag the new element around.
By changing the paper size and the orientation you can change the size of the scratchboard as well. You can do so by just changing the dropdown field below, and the scratchboard will resize automatically, without interfering with the current placement of the elements.
If ever an element gets out of range you can either enlarge the paper size or click on the 'reset' button to place all elements below each other.
NOTE: You have to use a recent browser like IE6 or Mozilla to get this control to work. The basic Drag&Drop script functionality was kindly borrowed from www.youngpup.net and is underlying so specific license.

$cfg['SQP']['fmtType'] string [html|none]
The main use of the new SQL Parser is to pretty-print SQL queries. By default we use HTML to format the query, but you can disable this by setting this variable to 'none'.

$cfg['SQP']['fmtInd'] float
$cfg['SQP']['fmtIndUnit'] string [em|px|pt|ex]
For the pretty-printing of SQL queries, under some cases the part of a query inside a bracket is indented. By changing $cfg['SQP']['fmtInd'] you can change the amount of this indent.
Related in purpose is $cfg['SQP']['fmtIndUnit'] which specifies the units of the indent amount that you specified. This is used via stylesheets.

$cfg['SQP']['fmtColor'] array of string tuples
This array is used to define the colours for each type of element of the pretty-printed SQL queries. The tuple format is
class => [HTML colour code | empty string]
If you specify an empty string for the color of a class, it is ignored in creating the stylesheet. You should not alter the class names, only the colour strings.
Class name key:

$cfg['SQLValidator']['use'] boolean
phpMyAdmin now supports use of the Mimer SQL Validator service, as originally published on Slashdot.
For help in setting up your system to use the service, see the FAQ #6.14.

$cfg['SQLValidator']['username'] string
$cfg['SQLValidator']['password'] string
The SOAP service allows you to login with anonymous and any password, so we use those by default.. Instead, if you have an account with them, you can put your login details here, and it will be used in place of the anonymous login.

$cfg['DBG']['enable'] boolean
DEVELOPERS ONLY!
Enable the DBG extension for debugging phpMyAdmin. Required for profiling the code.
For help in setting up your system to this, see the Developers section.
$cfg['DBG']['profile']['enable'] boolean
DEVELOPERS ONLY!
Enable profiling support for phpMyAdmin. This will append a chunk of data to the end of every page displayed in the main window with profiling statistics for that page.
You may need need to increase the maximum execution time for this to complete successfully.
$cfg['DBG']['profile']['threshold'] float (units in milliseconds)
DEVELOPERS ONLY!
When profiling data is displayed, this variable controls the threshold of display for any profiling data, based on the average time each time has taken. If it is over the threshold it is displayed, otherwise it is not displayed. This takes a value in milliseconds. In most cases you don't need to edit this.
$cfg['ColumnTypes'] array
All possible types of a MySQL column. In most cases you don't need to edit this.

$cfg['AttributeTypes'] array
Possible attributes for fields. In most cases you don't need to edit this.

$cfg['Functions'] array
A list of functions MySQL supports. In most cases you don't need to edit this.

$cfg['RestrictColumnTypes'] array
Mapping of column types to meta types used for prefering displayed functions. In most cases you don't need to edit this.

$cfg['RestrictFunctions'] array
Functions prefered for column meta types as defined in $cfg['RestrictColumnTypes']. In most cases you don't need to edit this.

$cfg['DefaultFunctions'] array
Functions selected by default when insering/changing row, Functions are defined for meta types from $cfg['RestrictColumnTypes'] and for first_timestamp, which is used for first timestamp column in table.


Transformations

Introduction  -  Usage  -  File structure  - 


[1. Introduction]

To enable transformations, you have to setup the column_info table and the proper directives. Please see the Configuration section on how to do so.


You can apply different transformations to the contents of each field. The transformation will take the content of each field and transform it with certain rules defined in the selected transformation.


Say you have a field 'filename' which contains a filename. Normally you would see in phpMyAdmin only this filename. Using transformations you can transform that filename into a HTML link, so you can click inside of the phpMyAdmin structure on the field's link and will see the file displayed in a new browser window. Using transformation options you can also specify strings to append/prepend to a string or the format you want the output stored in.


For a general overview of all available transformations and their options, you can consult your <www.your-host.com>/<your-install-dir>/libraries/transformations/overview.php3 installation.


For a tutorial on how to effectively use transformations, see our Link section on the official phpMyAdmin-homepage.


[2. Usage]

Go to your tbl_properties.inc.php3 page (i.e. reached through clicking on the 'properties' link for a table). There click on "Change" (or change icon) and there you will see three new fields at the end of the line. They are called 'MIME-type', 'Browser transformation' and 'Transformation options'.



[3. File structure]

All mimetypes and their transformations are defined through single files in the directory 'libraries/transformations/'.


They are stored in files to ease up customization and easy adding of new transformations.


Because the user cannot enter own mimetypes, it is kept sure that transformations always work. It makes no sense to apply a transformation to a mimetype, the transform-function doesn't know to handle.


One can, however, use empty mime-types and global transformations which should work for many mimetypes. You can also use transforms on a different mimetype they where built for, but pay attention to option usage as well as what the transformation does to your field.


There is a basic file called 'global.inc.php3'. This function can be included by any other transform function and provides some basic functions.


There are 5 possible file names:

  1. A mimetype+subtype transform:

    [mimetype]_[subtype]__[transform].inc.php3

    Please not that mimetype and subtype are separated via '_', which shall not be contained in their names. The transform function/filename may contain only characters which cause no problems in the file system as well as the PHP function naming convention.

    The transform function will the be called 'PMA_transform_[mimetype]_[subtype]__[transform]()'.

    Example:

    text_html__formatted.inc.php3
    PMA_transform_text_html__formatted()
  2. A mimetype (w/o subtype) transform:

    [mimetype]__[transform].inc.php3

    Please note that there are no single '_' characters. The transform function/filename may contain only characters which cause no problems in the file system as well as the PHP function naming convention.

    The transform function will the be called 'PMA_transform_[mimetype]__[transform]()'.

    Example:

    text__formatted.inc.php3
    PMA_transform_text__formatted()
  3. A mimetype+subtype without specific transform function

    [mimetype]_[subtype].inc.php3

    Please note that there are no '__' characters in the filename. Do not use special characters in the filename causing problems with the file system.

    No transformation function is defined in the file itself.

    Example:

    text_plain.inc.php3
    (No function)
  4. A mimetype (w/o subtype) without specific transform function

    [mimetype].inc.php3

    Please note that there are no '_' characters in the filename. Do not use special characters in the filename causing problems with the file system.

    No transformation function is defined in the file itself.

    Example:

    text.inc.php3
    (No function)
  5. A global transform function with no specific mimetype

    global__[transform].inc.php3

    The transform function will the be called 'PMA_transform_global__[transform]()'.

    Example:

    global__formatted
    PMA_transform_global__formatted()

So generally use '_' to split up mimetype and subtype, and '__' to provide a transform function.


All filenames containing no '__' in themselves are not shown as valid transform functions in the dropdown.


Please see the libraries/transformations/TEMPLATE file for adding your own transform function. See the libraries/transformations/TEMPLATE_MIMETYPE for adding a mimetype without a transform function. Also note the introduction of a function description in the language files. For each function a $strTransformation_[filename without .inc.php3] has to exist.


You can use the template generator to generate new functions and entries in the language file.


To create a new transform function please see libraries/transformations/template_generator.sh. To create a new, empty mimetype please see libraries/transformations/template_generator_mimetype.sh.



FAQ - Frequently Asked Questions

Server  -  Configuration  -  Limitations  -  Multi-user  -  Browsers  -  Usage tips  -  Project  -  Security


Please have a look at our Link section on the official phpMyAdmin homepage for in-depth coverage of phpMyAdmin's features and/or interface.


[1. Server]

[1.1] I'm running PHP 4+ and my server is crashing each time a specific action is required or phpMyAdmin sends a blank page or a page full of cryptic characters to my browser, what can I do?

There are some known PHP bugs with output buffering and compression.
Try to set the $cfg['OBGzip'] directive to FALSE in your config.inc.php or .php3 file and the zlib.output_compression directive to Off in your php configuration file.
Furthermore, we know about such problems connected to the release candidates of PHP 4.2.0 (tested with PHP 4.2.0 RC1 to RC4) together with MS Internet Explorer. Please upgrade to the release version PHP 4.2.0.

[1.2] My Apache server crashes when using phpMyAdmin.

You should first try the latest versions of Apache (and possibly MySQL).
See also the other FAQ entry about PHP bugs with output buffering.
If your server keeps crashing, please ask for help in the various Apache support groups.

[1.3] I'm running phpMyAdmin with "cookie" authentication mode under PHP 4.2.0 or 4.2.1 loaded as an Apache 2+ module but can't enter the script: I'm always displayed the login screen.

This is a known PHP bug (see this bug report) from the official PHP bug database. It means there is and won't be any phpMyAdmin fix against it because there is no way to code a fix.

[1.4] Using phpMyAdmin on IIS, I'm displayed the error message: "The specified CGI application misbehaved by not returning a complete set of HTTP headers...".

You just forgot to read the install.txt file from the php distribution. Have a look at the last message in this bug report from the official PHP bug database.

[1.5] Using phpMyAdmin on IIS, I'm facing crashes and/or many error messages with the HTTP or advanced authentication mode.

This is a known problem with the PHP ISAPI filter: it's not so stable. For some more information and complete testings see the messages posted by André B. aka "djdeluxe76" in this thread from the phpWizard forum.
Please use instead the cookie authentication mode.

[1.6] I can't use phpMyAdmin on PWS: nothing is displayed!

This seems to be a PWS bug. Filippo Simoncini found a workaround (at this time there is no better fix): remove or comment the DOCTYPE declarations (2 lines) from the scripts header.inc.php3, header_printview.inc.php3, index.php3, left.php3 and libraries/common.lib.php3.

[1.7] How can I GZip or Bzip a dump or a CSV export. It does not seem to work.

These features are based on the gzencode() and bzcompress() PHP functions to be more independent of the platform (Unix/Windows, Safe Mode or not, and so on). So, you must have PHP4 >= 4.0.4 and Zlib/Bzip2 support (--with-zlib and --with-bz2).
We faced PHP crashes when trying to download a dump with MS Internet Explorer when phpMyAdmin is run with a release candidate of PHP 4.2.0. In this case you should switch to the release version of PHP 4.2.0.

[1.8] I cannot insert a text file in a table, and I get an error about safe mode being in effect.

Your uploaded file is saved by PHP in the "upload dir", as defined in php.ini by the variable upload_tmp_dir (usually the system default is /tmp).
We recommend the following setup for Apache servers running in safe mode, to enable uploads of files while being reasonably secure:

[1.9] I'm having troubles when uploading files. In general file uploads don't work on my system and uploaded files have a Content-Type: header in the first line.

It's not really phpMyAdmin related but RedHat 7.0. You have a RedHat 7.0 and you updated your PHP RPM to php-4.0.4pl1-3.i386.rpm, didn't you?
So the problem is that this package has a serious bug that was corrected ages ago in PHP (2001-01-28: see PHP's bug tracking system for more details). The problem is that the bugged package is still available though it was corrected (see RedHat's BugZilla for more details).
So please download the fixed package (4.0.4pl1-9) and the problem should go away.
And that fixes the \r\n problem with file uploads!

[1.10] I'm having troubles when uploading files with phpMyAdmin running on a secure server. My browser is Internet Explorer and I'm using the Apache server.

As suggested by "Rob M" in the phpWizard forum, add this line to your httpd.conf:
    SetEnvIf User-Agent ".*MSIE.*" nokeepalive ssl-unclean-shutdown
It seems to clear up many problems between Internet Explorer and SSL.

[1.11] I get an 'open_basedir restriction' while uploading a file from the query box.

Since version 2.2.4, phpMyAdmin supports servers with open_basedir restrictions. Assuming that the restriction allows you to open files in the current directory ('.'), all you have to do is create a 'tmp' directory under the phpMyAdmin install directory, with permissions 777 and the same owner as the owner of your phpMyAdmin directory. The uploaded files will be moved there, and after execution of your SQL commands, removed.

[1.12] I have lost my MySQL root password, what can I do?

The MySQL manual explains how to reset the permissions.

[1.13] I get an error 'No SQL query' when trying to execute a bookmark.

If PHP does not have read/write access to its upload_tmp_dir, it cannot access the uploaded query.

[1.14] I get an error 'No SQL query' when trying to submit a query from the convenient text area.

Check the post_max_size directive from your PHP configuration file and try to increase it.

[1.15] I have problems with mysql.user field names.

In older MySQL versions, the User and Password fields were named user and password. Please modify your field names to align with current standards.

[1.16] I cannot upload big dump files (memory, http or timeout problems).

The first things to check (or ask your host provider to check) are the values of upload_max_filesize, memory_limit and post_max_size in the php.ini configuration file.
All of these three settings limit the maximum size of data that can be submitted and handled by PHP. One user also said that post_max_size and memory_limit need to be larger than upload_max_filesize.
If you get a timeout problem, look at the $cfg['UploadDir'] feature.

[1.17] Which MySQL versions does phpMyAdmin support?

All MySQL versions from 3.21 till 4.0 are fully supported. Please note that the older your MySQL version is, the more limitations you will have to face.
phpMyAdmin provides experimental support for MySQL 4.1. That means that although you can assign character sets to a table or field, phpMyAdmin will not recode the data when inserting or extracting it. Instead, it will still use the character set you specified for the MySQL connection.
When compiling php, we strongly recommend that you manually link the MySQL extension to a MySQL client library of at least the same version since the one that is bundled with php 4.x is rather old and might cause problems.
Also, we do not yet support the imporoved MySQL extension (mysqli) that comes with php 5. For the moment, the old MySQL extension should also work fine here, if compiled correctly.
MySQL 5.0 and 5.1 are not yet supported.

[1.18] I'm running MySQL <= 4.0.1 having lower_case_table_names set to 1. If I create a new table with a capital letter in its name it is changed to lowercase as it should. But if I try to DROP this table MySQL is unable to find the corresponding file.

This is a bug of MySQL <= 4.0.1. Please upgrade to at least MySQL 4.0.2 or turn off your lower_case_table_names directive.

[1.19] I can't run the "display relations" feature because the script seems not to know the font face I'm using!

The "FPDF" library we're using for this feature requires some special files to use font faces.
Please refers to the FPDF manual to build these files.


[1.20] I receive the error "cannot load MySQL extension, please check PHP Configuration".

To connect to a MySQL server, PHP needs a set of MySQL functions called "MySQL extension". This extension may be part of the PHP distribution (compiled-in), otherwise it needs to be loaded dynamically. Its name is probably mysql.so or php_mysql.dll. phpMyAdmin tried to load the extension but failed.

Usually, the problem is solved by installing a software package called "PHP-MySQL" or something similar.

[1.21] I am running the CGI version of PHP under Unix, and I cannot login using cookie auth.

In php.ini, set mysql.max_links higher than 1.

[1.22] I don't see the "Location of text file" field, so I cannot upload.

This is most likely because in php.ini, your file_uploads parameter is not set to "on".

[1.23] I'm running MySQL on a Win32 machine. Each time I create a new table the table and field names are changed to lowercase!

This happens because the MySQL directive lower_case_table_names defaults to 1 (ON) in the Win32 version of MySQL. You can change this behavior by simply changing the directive to 0 (OFF):
Just edit your my.ini file that should be located in your Windows directory and add the following line to the group [mysqld]:
set-variable = lower_case_table_names=0
Next, save the file and restart the MySQL service. You can always check the value of this directive using the query
SHOW VARIABLES LIKE 'lower_case_table_names';

[1.24] Some characters are being truncated in my queries, or I get characters randomly added. I am running PHP 4.2.3.

This is a PHP 4.2.3 bug.

[1.25] I am running Apache with mod_gzip-1.3.26.1a on Windows XP, and I get problems, such as undefined variables when I run a SQL query.

A tip from Jose Fandos: put a comment on the following two lines in httpd.conf, like this:
# mod_gzip_item_include file \.php$
# mod_gzip_item_include mime "application/x-httpd-php.*"
as this version of mod_gzip on Apache (Windows) has problems handling PHP scripts. Of course you have to restart Apache.

[1.26] I just installed phpMyAdmin in my document root of IIS but I get the error "No input file specified" when trying to run phpMyAdmin.

This is a permission problem. Right-click on the phpmyadmin folder and choose properties. Under the tab Security, click on "Add" and select the user "IUSER_machine" from the list. Now set his permissions and it should work.

[1.27] I get empty page when I want to view huge page (eg. db_details_structure.php3 with plenty of tables).

This is a PHP bug that occur when GZIP output buffering enabled. If you turn off it (by $cfg['OBGzip'] = FALSE in config.inc.php3), it should work. This bug will be fixed in PHP 5.0.0.

[1.28] My MySQL server sometimes refuses queries and returns the message 'Errorcode: 13'. What does this mean?

This can happen due to a MySQL bug when having database / table names with upper case characters although lower_case_table_names is set to 1. To fix this, turn off this directive, convert all database and table names to lower case and turn it on again. Alternatively, there's a bug-fix available starting with MySQL 3.23.56 / 4.0.11-gamma.

[1.29] When I create a table or modify a field, I get an error and the fields are duplicated.

It is possible to configure Apache in such a way that PHP has problems interpreting .php files.

The problems occur when two different (and conflicting) set of directives are used:

SetOutputFilter PHP
SetInputFilter PHP
 &
AddType application/x-httpd-php .php

In the case we saw, one set of directives was in /etc/httpd/conf/httpd.conf, while the other set was in /etc/httpd/conf/addon-modules/php.conf.
The recommended way is with AddType, so just comment out the first set of lines and restart Apache:

#SetOutputFilter PHP
#SetInputFilter PHP

[1.30] I get the error "left.php: Missing hash".

This problem is known to happen when the server is running Turck MMCache but upgrading MMCache to version 2.3.21 solves the problem.


[2. Configuration]

[2.1] The error message "Warning: Cannot add header information - headers already sent by ..." is displayed, what's the problem?

Edit your config.inc.php or .php3 file and ensure there is nothing (I.E. no blank lines, no spaces, no characters...) neither before the <?php tag at the beginning, neither after the ?> tag at the end.

[2.2] phpMyAdmin can't connect to MySQL. What's wrong?

Either there is an error with your PHP setup or your username/password is wrong. Try to make a small script which uses mysql_connect and see if it works. If it doesn't, it may be you haven't even compiled MySQL support into PHP.

[2.3] The error message "Warning: MySQL Connection Failed: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (111)..." is displayed. What can I do?


For RedHat users, Harald Legner suggests this on the mailing list:

On my RedHat-Box the socket of MySQL is /var/lib/mysql/mysql.sock. In your php.ini you will find a line
    mysql.default_socket = /tmp/mysql.sock
change it to
    mysql.default_socket = /var/lib/mysql/mysql.sock
Then restart apache and it will work.

Here is a fix suggested by Brad Ummer in the phpwizard forum:

Have also a look at the corresponding section of the MySQL documentation.

[2.4] Nothing is displayed by my browser when I try to run phpMyAdmin, what can I do?

Try to set the $cfg['OBGZip'] directive to FALSE in the phpMyAdmin configuration file. It helps sometime.
Also have a look at your PHP version number: if it contains "4.0b..." it means you're running a beta version of PHP. That's not a so good idea, please upgrade to a plain revision.

[2.5] Each time I want to insert or change a record or drop a database or a table, an error 404 (page not found) is displayed or, with HTTP or cookie authentication, I'm asked to login again. What's wrong?

Check the value you set for the $cfg['PmaAbsoluteUri'] directive in the phpMyAdmin configuration file.

[2.6] I get an "Access denied for user: 'root@localhost' (Using password: YES)"-error when trying to access a MySQL-Server on a host which is port-forwarded for my localhost

When you are using a port on your localhost, which you redirect via port-forwarding to another host, MySQL is not resolving the localhost as expected.
Erik Wasser explains: The solution is: if your host is "localhost" MySQL (the commandline tool 'mysql' as well) always tries to use the socket connection for speeding up things. And that doesn't work in this configuration with port forwarding.
If you enter "127.0.0.1" as hostname, everything is right and MySQL uses the TCP connection.


[3. Known limitations]


[3.1] When using HTTP authentication, an user who logged out can not relogin in with the same nick.

This is related to the authentication mechanism (protocol) used by phpMyAdmin. To bypass this problem: just close all the opened browser windows and then go back to phpMyAdmin. You should be able to log in again.

[3.2] When dumping a large table in compressed mode, I get a memory limit error or a time limit error.

Compressed dumps are built in memory and because of this are limited to php's memory limit. For GZip/BZip2 exports this can be overcome since 2.5.4 using $cfg['CompressOnFly'] (enabled by default). Zip exports can not be handled this way, so if you need Zip files for larger dump, you have to use another way.

[3.3] With InnoDB tables, I lose foreign key relationships when I rename or alter a table.

This seems to be a InnoDB bug (fixed in MySQL 3.23.50?).

[3.4] I am unable to import dumps I created with the mysqldump tool bundled with the MySQL server distribution.

The problem is that mysqldump creates invalid comments like this: 

-- MySQL dump 8.22
--
-- Host: localhost Database: database
---------------------------------------------------------
-- Server version 3.23.54

The invalid part of the code is the horizontal line made of dashes that appears once in every dump created with mysqldump. If you want to run your dump you have to turn it into valid MySQL. This means, you have to add a whitespace after the first to dashes of the line or add a # before it:
-- -------------------------------------------------------
 or
#---------------------------------------------------------

[3.5] When using nested folders ($cfg['LeftFrameTableSeparator']) there are some multiple hierarchies displayed in a wrong manner?!

Please note that you should not use the seperating string multiple times without any characters between them, or at the beginning/end of your table name. If you have to, think about using another TableSeparator or disabling that feature

[3.6] What is currently not supported in phpMyAdmin about InnoDB?

In Relation view, being able to choose a table in another database, or having more than one index field in the foreign key.

In Query-by-example (Query), automatic generation of the query LEFT JOIN from the foreign table.

[3.7] I have table with many (100+) fields and when I try to browse table I get series of errors like "Warning: unable to parse url". How can this be fixed?

Your table neither have a primary key nor an unique one, so we must use a long expression to identify this row. This causes problems to parse_url function. The workaround is to create a primary or unique key.


[4. ISPs, multi-user installations ]

[4.1] I'm an ISP. Can I setup one central copy of phpMyAdmin or do I need to install it for each customer.

Since version 2.0.3, you can setup a central copy of phpMyAdmin for all your users. The development of this feature was kindly sponsored by NetCologne GmbH. This requires a properly setup MySQL user management and phpMyAdmin HTTP or cookie authentication. See the install section on "Using HTTP authentication".

[4.2] What's the preferred way of making phpMyAdmin secure against evil access.

This depends on your system.
If you're running a server which cannot be accessed by other people, it's sufficient to use the directory protection bundled with your webserver (with Apache you can use .htaccess files, for example).
If other people have telnet access to your server, you should use phpMyAdmin's HTTP authentication feature.

Suggestions:

[4.3] I get errors about not being able to include a file in /lang or in /libraries.

Check php.ini, or ask your sysadmin to check it. The include_path must contain "." somewhere in it, and open_basedir, if used, must contain "." and "./lang" to allow normal operation of phpMyAdmin.

[4.4] phpMyAdmin always gives "Access denied" when using HTTP authentication.

This could happen for several reasons:

[4.5] Is it possible to let users create their own databases?

Starting with 2.2.5, in the user management page, you can enter a wildcard database name for a user (for example "joe%"), and put the privileges you want. For example, adding SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, INDEX, ALTER would let a user create/manage his/her database(s).

[4.6] How can I use the Host-based authentication additions?

If you have existing rules from an old .htaccess file, you can take them and add a username between the 'deny'/'allow' and 'from' strings. Using the username wildcard of '%' would be a major benefit here if your installation is suited to using it. Then you can just add those updated lines into the $cfg['Servers'][$i]['AllowDeny']['rules'] array.

If you want a pre-made sample, you can try this fragment. It stops the 'root' user from logging in from any networks other than the private network IP blocks.
    //block root from logging in except from the private networks
    $cfg['Servers'][$i]['AllowDeny']['order'] = 'deny,allow';
    $cfg['Servers'][$i]['AllowDeny']['rules'] = array(
        'deny root from all',
        'allow root from localhost',
        'allow root from 10.0.0.0/8',
        'allow root from 192.168.0.0/16',
        'allow root from 172.16.0.0/12',
        );

[4.7] Authentication window is displayed more than once, why?

This happens if you are using a URL to start phpMyAdmin which is different than the one set in your $cfg['PmaAbsoluteUri']. For example, a missing "www", or entering with an IP address while a domain name is defined in the config file.


[5. Browsers or client OS]

[5.1] I get an out of memory error, and my controls are non-functional, when trying to create a table with more than 14 fields.

We could reproduce this problem only under Win98/98SE. Testing under WinNT4 or Win2K, we could easily create more than 60 fields.
A workaround is to create a smaller number of fields, then come back to your table properties and add the other fields.

[5.2] With Xitami 2.5b4, phpMyAdmin won't process form fields.

This is not a phpMyAdmin problem but a Xitami known bug: you'll face it with each script/website that use forms.
Upgrade or downgrade your Xitami server.

[5.3] I have problems dumping tables with Konqueror (phpMyAdmin 2.2.2).

With Konqueror 2.1.1: plain dumps, zip and GZip dumps work ok, except that the proposed file name for the dump is always 'tbl_dump.php'. Bzip2 dumps don't seem to work.
With Konqueror 2.2.1: plain dumps work; zip dumps are placed into the user's temporary directory, so they must be moved before closing Konqueror, or else they disappear. GZip dumps give an error message.
Testing needs to be done for Konqueror 2.2.2.

[5.4] I can't use the cookie authentication mode because Internet Explorer never stores the cookies.

MS Internet Explorer seems to be really buggy about cookies, at least till version 6. And thanks to Andrew Zivolup we've traced also a PHP 4.1.1 bug in this area!
Then, if you're running PHP 4.1.1, try to upgrade or downgrade... it may work!

[5.5] In Internet Explorer 5.0, I get JavaScript errors when browsing my rows.

Upgrade to at least Internet Explorer 5.5 SP2.

[5.6] In Internet Explorer 5.0, 5.5 or 6.0, I get an error (like "Page not found") when trying to modify a row in a table with many fields, or with a text field

Your table neither have a primary key nor an unique one, so we must use a long URL to identify this row. There is a limit on the length of the URL in those browsers, and this not happen in Netscape, for example. The workaround is to create a primary or unique key, or use another browser.

[5.7] I refresh (reload) my browser, and come back to the welcome page.

Some browsers support right-clicking into the frame you want to refresh, just do this in the right frame.

[5.8] With Mozilla 0.9.7 I have problems sending a query modified in the query box.

Looks like a Mozilla bug: 0.9.6 was OK. We will keep an eye on future Mozilla versions.

[5.9] With Mozilla 0.9.? to 1.0 and Netscape 7.0-PR1 I can't type a whitespace in the SQL-Query edit area: the page scrolls down.

This is a Mozilla bug (see bug #26882 at BugZilla).

[5.10] With Netscape 4.75 I get empty rows between each row of data in a CSV exported file.

This is a known Netscape 4.75 bug: it adds some line feeds when exporting data in octet-stream mode. Since we can't detect the specific Netscape version, we cannot workaround this bug.

[5.11] Extended-ASCII characters like German umlauts are displayed wrong.

Please ensure that you have set your browser's character set to the one of the language file you have selected on phpMyAdmin's start page. Alternatively, you can try the auto detection mode that is supported by the recent versions of the most browsers.

[5.12] Apple OS X: Safari browser changes special characters to "?".

This issue has been reported by a OS X user, who adds that Chimera, Netscape and Mozilla do not have this problem.

[5.13] With Internet Explorer 5.5 or 6, and HTTP authentication type, I cannot manage two servers: I login to the first one, then the other one, but if I switch back to the first, I have to login on each operation.

This is a bug in Internet Explorer, other browsers do not behave this way.

[5.14] Using Opera6, I can manage to get to the authentification, but nothing happens after that, only a blank screen.

Having $cfg['QueryFrameJS'] set to TRUE, this leads to a bug in Opera6, because it is not able to interpret frameset definitiions written by JavaScript. Please upgrade to Opera7 at least.


[6. Using phpMyAdmin]

[6.1] I can't insert new rows into a table / I can't create a table - MySQL brings up a SQL-error.

Examine the SQL error with care. Often the problem is caused by specifying a wrong field-type.
Common errors include:

Also, look at the syntax chapter in the MySQL manual to confirm that your syntax is correct.

[6.2] When I create a table, I click the Index checkbox for 2 fields and phpMyAdmin generates only one index with those 2 fields.

In phpMyAdmin 2.2.0 and 2.2.1, this is the way to create a multi-fields index. If you want two indexes, create the first one when creating the table, save, then display the table properties and click the Index link to create the other index.

[6.3] How can I insert a null value into my table?

Since version 2.2.3, you have a checkbox for each field that can be null. Before 2.2.3, you had to enter "null", without the quotes, as the field's value.

[6.4] How can I backup my database or table?

Click on a database or table name in the left frame, the properties will be displayed. Then on the menu, click "Export", you can dump the structure, the data, or both. This will generate standard SQL statements that can be used to recreate your database/table.

You will need to choose "Save as file", so that phpMyAdmin can transmit the resulting dump to your station. Depending on your PHP configuration, you will see options to compress the dump. See also the $cfg['ExecTimeLimit'] configuration variable.

For additional help on this subject, look for the word "dump" in this document.

[6.5] How can I restore (upload) my database or table using a dump? How can I run a ".sql" file.

Click on a database name in the left frame, the properties will be local displayed. Then in the "Run SQL query" section, type in your dump filename, or use the Browse button. Then click Go.

For additional help on this subject, look for the word "upload" in this document.

[6.6] How can I use the relation table in Query-by-example?

Here is an example with the tables persons, towns and countries, all located in the database mydb. If you don't have a pma_relation table, create it as explained in the configuration section. Then create the example tables:

     CREATE TABLE REL_countries (
       country_code char(1) NOT NULL default '',
       description varchar(10) NOT NULL default '',
       PRIMARY KEY (country_code)
     ) TYPE=MyISAM;

     INSERT INTO REL_countries VALUES ('C', 'Canada');

     CREATE TABLE REL_persons (
       id tinyint(4) NOT NULL auto_increment,
       person_name varchar(32) NOT NULL default '',
       town_code varchar(5) default '0',
       country_code char(1) NOT NULL default '',
       PRIMARY KEY (id)
     ) TYPE=MyISAM;

     INSERT INTO REL_persons VALUES (11, 'Marc', 'S', '');
     INSERT INTO REL_persons VALUES (15, 'Paul', 'S', 'C');

     CREATE TABLE REL_towns (
       town_code varchar(5) NOT NULL default '0',
       description varchar(30) NOT NULL default '',
       PRIMARY KEY (town_code)
     ) TYPE=MyISAM;

     INSERT INTO REL_towns VALUES ('S', 'Sherbrooke');
     INSERT INTO REL_towns VALUES ('M', 'Montréal');

 To setup appropriate links and display information:

Then test like this:



[6.7] How can I use the "display field" feature?

Starting from the previous example, create the pma_table_info as explained in the configuration section, then browse your persons table, and move the mouse over a town code or country code.

See also FAQ 6.21 for an additionnal feature that "display field" enables: drop-down list of possible values.


[6.8] How can I produce a PDF schema of my database?

First you have to fill the "relation", "table_coords" and "pdf_pages" configuration variables.

Then, think about your schema layout: which tables will go on which pages.