Assigning to primary maintainer

Works with the procedural interface, use procedural style until fix has been committed.

Re-assigning to Johannes. Andrey is busy with non-PHP work at the moment. Johannes please have a look

Hmm, I'm wrong its more tricky. 

More like - first execution fails, second and all after work fine. It does not matter if you use the procedural or OO interface. 

The test does not catch it because it first does parameter tests (e.g. mysqli_multi_query($link, "") - expected to fail) before it runs a query. And "runs a query" is the second function call.

But anyway Johannes, if its not in the inner workings of mysqlnd itself, try to shield Andrey from PHP works.

Ulf

also does not work with PDO:

  $sql = "SELECT 1; SELECT 2; SELECT  3";
  $result = $conn->query($sql);
  do {
    echo "<p>----\n";
    $rowset = $result->fetch(PDO::FETCH_NUM);
    foreach($rowset as $row) {
      echo "<p>$row[0]";
   }
  } while($result->nextRowset());

Expected result (which I get with libmysql)

----
1
----
2
----
3

Actual result (with myslqnd, apparently only the first SQL command is evaluated)

----
1

(some debug output from my hacked php5.3 included)

nixnutz@ulflinux:~/src/php5> sapi/cli/php -i | grep configure
Configure Command =>  './configure'  '--with-mysqli=/usr/local/mysql/bin/mysql_config' '--with-pdo-mysql=/usr/local/mysql/bin/mysql_config'

nixnutz@ulflinux:~/src/php5> sapi/cli/php -r '$p = new PDO("mysql:host=localhost;db=test", "root", "root"); $stmt = $p->query("SELECT 1; SELECT 2; SELECT 3"); do { var_dump($stmt->fetchAll(PDO::FETCH_ASSOC)); } while ($stmt->nextRowset());'
fetch_value(0)
param_str
array(1) {
  [0]=>
  array(1) {
    [1]=>
    string(1) "1"
  }
}
fetch_value(0)
param_str
array(1) {
  [0]=>
  array(1) {
    [2]=>
    string(1) "2"
  }
}
fetch_value(0)
param_str
array(1) {
  [0]=>
  array(1) {
    [3]=>
    string(1) "3"
  }
}



nixnutz@ulflinux:~/src/php5> sapi/cli/php -i | grep configure
Configure Command =>  './configure'  '--with-mysqli=mysqlnd' '--with-pdo-mysql=mysqlnd'

nixnutz@ulflinux:~/src/php5> sapi/cli/php -r '$p = new PDO("mysql:host=localhost;db=test", "root", "root"); $stmt = $p->query("SELECT 1; SELECT 2; SELECT 3"); do { var_dump($stmt->fetchAll(PDO::FETCH_ASSOC)); } while ($stmt->nextRowset());'
fetch_value(0)
param_str
array(1) {
  [0]=>
  array(1) {
    [1]=>
    string(1) "1"
  }
}
fetch_value(0)
param_str
array(1) {
  [0]=>
  array(1) {
    [2]=>
    string(1) "2"
  }
}
fetch_value(0)
param_str
array(1) {
  [0]=>
  array(1) {
    [3]=>
    string(1) "3"
  }
}

This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.

The MySQLi case is fixed, the PDO case works for me with emulated prepared statements. Multi Query isn't supported by MySQL when using native prepared statements.

mysqli: works fine now, thanks!

PDO: sorry for the false alarm, another query executed before was the cause