Runtime Configuration

    The behaviour of these functions is affected by settings in php.ini.

    MySQL Configuration Options
    NameDefaultChangeableChangelog
    mysql.allow_local_infile"1"INI_SYSTEM 
    mysql.allow_persistent"1"INI_SYSTEM 
    mysql.max_persistent"-1"INI_SYSTEM 
    mysql.max_links"-1"INI_SYSTEM 
    mysql.trace_mode"0"INI_ALL 
    mysql.default_portNULLINI_ALL 
    mysql.default_socketNULLINI_ALL 
    mysql.default_hostNULLINI_ALL 
    mysql.default_userNULLINI_ALL 
    mysql.default_passwordNULLINI_ALL 
    mysql.connect_timeout"60"INI_ALL 
    For further details and definitions of the INI_* modes, see the Where a configuration setting may be set.

    Here's a short explanation of the configuration directives.

    mysql.allow_local_infileint

    Allow accessing, from PHP's perspective, local files with LOAD DATA statements

    mysql.allow_persistentbool

    Whether to allow persistent connections to MySQL.

    mysql.max_persistentint

    The maximum number of persistent MySQL connections per process.

    The maximum number of MySQL connections per process, including persistent connections.

    mysql.trace_modebool

    Trace mode. When mysql.trace_mode is enabled, warnings for table/index scans, non free result sets, and SQL-Errors will be displayed. (Introduced in PHP 4.3.0)

    mysql.default_portstring

    The default TCP port number to use when connecting to the database server if no other port is specified. If no default is specified, the port will be obtained from the MYSQL_TCP_PORT environment variable, the mysql-tcp entry in /etc/services or the compile-time MYSQL_PORT constant, in that order. Win32 will only use the MYSQL_PORT constant.

    mysql.default_socketstring

    The default socket name to use when connecting to a local database server if no other socket name is specified.

    mysql.default_hoststring

    The default server host to use when connecting to the database server if no other host is specified. Doesn't apply in SQL safe mode.

    mysql.default_userstring

    The default user name to use when connecting to the database server if no other name is specified. Doesn't apply in SQL safe mode.

    mysql.default_passwordstring

    The default password to use when connecting to the database server if no other password is specified. Doesn't apply in SQL safe mode.

    mysql.connect_timeoutint

    Connect timeout in seconds. On Linux this timeout is also used for waiting for the first answer from the server.

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