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PHP mysqli::options

PHP original manual for mysqli::options [ show | php.net ]

mysqli::options

mysqli_options

(PHP 5, PHP 7)

mysqli::options -- mysqli_options — Set options

Description

Object oriented style

bool mysqli::options ( int $option , mixed $value )

Procedural style

bool mysqli_options ( mysqli $link , int $option , mixed $value )

Used to set extra connect options and affect behavior for a connection.

This function may be called multiple times to set several options.

mysqli_options() should be called after mysqli_init() and before mysqli_real_connect().

Parameters

link

Procedural style only: A link identifier returned by mysqli_connect() or mysqli_init()

option

The option that you want to set. It can be one of the following values:

Valid options
Name Description
MYSQLI_OPT_CONNECT_TIMEOUT connection timeout in seconds (supported on Windows with TCP/IP since PHP 5.3.1)
MYSQLI_OPT_LOCAL_INFILE enable/disable use of LOAD LOCAL INFILE
MYSQLI_INIT_COMMAND command to execute after when connecting to MySQL server
MYSQLI_READ_DEFAULT_FILE Read options from named option file instead of my.cnf
MYSQLI_READ_DEFAULT_GROUP Read options from the named group from my.cnf or the file specified with MYSQL_READ_DEFAULT_FILE.
MYSQLI_SERVER_PUBLIC_KEY RSA public key file used with the SHA-256 based authentication.
MYSQLI_OPT_NET_CMD_BUFFER_SIZE The size of the internal command/network buffer. Only valid for mysqlnd.
MYSQLI_OPT_NET_READ_BUFFER_SIZE Maximum read chunk size in bytes when reading the body of a MySQL command packet. Only valid for mysqlnd.
MYSQLI_OPT_INT_AND_FLOAT_NATIVE Convert integer and float columns back to PHP numbers. Only valid for mysqlnd.
MYSQLI_OPT_SSL_VERIFY_SERVER_CERT

value

The value for the option.

Return Values

Returns TRUE on success or FALSE on failure.

Changelog

Version Description
5.5.0 The MYSQLI_SERVER_PUBLIC_KEY and MYSQLI_SERVER_PUBLIC_KEY options were added.
5.3.0 The MYSQLI_OPT_INT_AND_FLOAT_NATIVE, MYSQLI_OPT_NET_CMD_BUFFER_SIZE, MYSQLI_OPT_NET_READ_BUFFER_SIZE, and MYSQLI_OPT_SSL_VERIFY_SERVER_CERT options were added.

Examples

See mysqli_real_connect().

Notes

Note:

MySQLnd always assumes the server default charset. This charset is sent during connection hand-shake/authentication, which mysqlnd will use.

Libmysqlclient uses the default charset set in the my.cnf or by an explicit call to mysqli_options() prior to calling mysqli_real_connect(), but after mysqli_init().

See Also