<?php

$dbuser = array('root1','root2','root3','root4','root5');
$dbpass = array('00001','00002','00003','00004','00005');
$dbname = array('name1','name1','name1','name1','name1');

$say = count($dbuser) - 1;

for($i = 0; $i<=$say;$i++){
	$baglanti	=	mysql_connect('localhost',$dbuser[$i],$dbpass[$i]);
					mysql_select_db($dbname[$i]);
					mysql_query('Sorgu burada..');
					mysql_close($baglanti);
}
?>