MySQL :: MySQL PHP API :: 3.9.33 mysqli::options, mysqli

MySQL PHP API / ... / mysqli::options, mysqli_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.

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:

Table 3.10 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

mysqli_init

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