©
本文档使用
php.cn手册 发布
(PECL mysqlnd-uh >= 1.0.0-alpha)
MysqlndUhConnection::queryReadResultsetHeader — Read a result set header
$connection
, mysqlnd_statement $mysqlnd_stmt
)Read a result set header.
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.
Returns TRUE
on success.
Otherwise, returns FALSE
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!" }