Call to a member function fetch_assoc() on a non-object

code is as follows:

require_once ‘.. /pd_inc/pd_mysqlHelper.class.php’;

$prov = array ();

$my = new mysqlHelper();

$my-> Execute_dml (‘ use city);

$query = $my – & gt; Execute_dql (” call pd_seek_city (1, 0, null, null);” );

the while ($res = $query – & gt; fetch_assoc()){

$prov [] = $res;

}

?>

// newbie cute new, please great god more advice, please

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