MysqlndUhConnection::getProtocolInformation

(PECL mysqlnd-uh >= 1.0.0-alpha)

MysqlndUhConnection::getProtocolInformation — Returns the version of the MySQL protocol used

说明

public string MysqlndUhConnection::getProtocolInformation ( mysqlnd_connection $connection )

Returns the version of the MySQL protocol used.

参数

connection: Mysqlnd connection handle. Do not modify!

返回值

The protocol version.

范例

Example #1 MysqlndUhConnection::getProtocolInformation() example

  <?php
 class  proxy  extends  MysqlndUhConnection  {
 public function  getProtocolInformation ( $res ) {
   printf ( "%s(%s)\n" ,  __METHOD__ ,  var_export ( func_get_args (),  true ));
   $ret  =  parent :: getProtocolInformation ( $res );
   printf ( "%s returns %s\n" ,  __METHOD__ ,  var_export ( $ret ,  true ));
  return  $ret ;
 }
}
 mysqlnd_uh_set_connection_proxy (new  proxy ());

 $mysqli  = new  mysqli ( "localhost" ,  "root" ,  "" ,  "test" );
 var_dump ( $mysqli -> protocol_version );
 ?>

以上例程会输出：

proxy::getProtocolInformation(array (
  0 => NULL,
))
proxy::getProtocolInformation returns 10
int(10)

参见

mysqlnd_uh_set_connection_proxy() - Installs a proxy for mysqlnd connections
mysqli_get_proto_info() - 返回MySQL使用的协议版本号
mysql_get_proto_info() - 取得 MySQL 协议信息