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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.

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` option was 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().

mysqli::options