Runtime Configuration

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

For further details and definitions of the PHP_INI_* modes, see the
Where a
configuration setting may be set.

Here’s a short explanation of the configuration
directives.

mysql.allow_local_infile integer

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

mysql.allow_persistent boolean

Whether to allow persistent
connections to MySQL.

mysql.max_persistent integer

The maximum number of persistent MySQL connections
per process.

mysql.max_links integer

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

mysql.trace_mode boolean

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_port string

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_socket string

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

mysql.default_host string

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_user string

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_password string

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_timeout integer

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