MySQL and PHP
Copyright 1997-2021 the PHP Documentation Group.
The behaviour of these functions is affected by settings in php.ini
.
Table 6.2 MySQL Configuration Options
Name | Default | Changeable | Changelog |
---|---|---|---|
mysql.allow_local_infile | "1" | PHP_INI_SYSTEM | |
mysql.allow_persistent | "1" | PHP_INI_SYSTEM | |
mysql.max_persistent | "-1" | PHP_INI_SYSTEM | |
mysql.max_links | "-1" | PHP_INI_SYSTEM | |
mysql.trace_mode | "0" | PHP_INI_ALL | |
mysql.default_port | NULL | PHP_INI_ALL | |
mysql.default_socket | NULL | PHP_INI_ALL | |
mysql.default_host | NULL | PHP_INI_ALL | |
mysql.default_user | NULL | PHP_INI_ALL | |
mysql.default_password | NULL | PHP_INI_ALL | |
mysql.connect_timeout | "60" | PHP_INI_ALL |
For further details and definitions of the PHP_INI_* modes, see
the
http://www.php.net/manual/en/configuration.changes.modes.
Here's a short explanation of the configuration directives.
mysql.allow_local_infile
int
Allow accessing, from PHP's perspective, local files with LOAD DATA statements
mysql.allow_persistent
bool
Whether to allow persistent connections to MySQL.
mysql.max_persistent
int
The maximum number of persistent MySQL connections per process.
mysql.max_links
int
The maximum number of MySQL connections per process, including persistent connections.
mysql.trace_mode
bool
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
int
Connect timeout in seconds. On Linux this timeout is also used for waiting for the first answer from the server.