Last Chaos

<?php
$dbhost='127.0.0.1';
$dblogin='root';
$dbpass='';
$dbname='auth';
$cash=20;


$DBH=new PDO("mysql:host=$dbhost;dbname=$dbname", $dblogin, $dbpass);
$STH = $DBH->prepare("SELECT a_portal_index FROM `t_users` WHERE a_zone_num!=-1");$STH->execute();
if($STH->rowCount()!=0){$STH->setFetchMode(PDO::FETCH_ASSOC);
while($row=$STH->fetch()){
$STH2 = $DBH->prepare("UPDATE `bg_user` SET `cash`=cash+? WHERE (`user_code`=?)");$STH2->execute(array($cash,$row['a_portal_index']));
}
}
?>