MysqlndUhConnection::queryReadResultsetHeader

(PECL mysqlnd-uh >= 1.0.0-alpha)

MysqlndUhConnection::queryReadResultsetHeader — Read a result set header

说明

public bool MysqlndUhConnection::queryReadResultsetHeader ( mysqlnd_connection $connection , mysqlnd_statement $mysqlnd_stmt )

Read a result set header.

参数

connection: Mysqlnd connection handle. Do not modify!
mysqlnd_stmt: Mysqlnd statement handle. Do not modify! Set to NULL , if function is not used in the context of a prepared statement.

返回值

Returns TRUE on success. Otherwise, returns FALSE

范例

Example #1 MysqlndUhConnection::queryReadResultsetHeader() example

  <?php
 class  proxy  extends  MysqlndUhConnection  {
 public function  queryReadResultsetHeader ( $res ,  $stmt ) {
   printf ( "%s(%s)\n" ,  __METHOD__ ,  var_export ( func_get_args (),  true ));
   $ret  =  parent :: queryReadResultsetHeader ( $res ,  $stmt );
   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" );
 $res  =  $mysqli -> query ( "SELECT 'Welcome mysqlnd_uh!' FROM DUAL" );
 var_dump ( $res -> fetch_assoc ());
 ?>

以上例程会输出：

proxy::queryReadResultsetHeader(array (
  0 => NULL,
  1 => NULL,
))
proxy::queryReadResultsetHeader returns true
array(1) {
  ["Welcome mysqlnd_uh!"]=>
  string(19) "Welcome mysqlnd_uh!"
}

参见

mysqlnd_uh_set_connection_proxy() - Installs a proxy for mysqlnd connections