(PHP 5)
mysqli::options -- mysqli_options — Set options
Object oriented style
Procedural style
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().
linkProcedural style only: A link identifier returned by mysqli_connect() or mysqli_init()
optionThe option that you want to set. It can be one of the following values:
| 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 | 
valueThe value for the option.
   Returns TRUE on success or FALSE on failure.
  
| Version | Description | 
|---|---|
| 5.5.0 | The MYSQLI_SERVER_PUBLIC_KEYandMYSQLI_SERVER_PUBLIC_KEYoptions were added. | 
| 5.3.0 | The MYSQLI_OPT_INT_AND_FLOAT_NATIVE,MYSQLI_OPT_NET_CMD_BUFFER_SIZE,MYSQLI_OPT_NET_READ_BUFFER_SIZE, andMYSQLI_OPT_SSL_VERIFY_SERVER_CERToptions were
        added. | 
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().