<?php
//Connect To Database
$hostname='localhost.com';
$username='forexample';
$password='xxxx';
$dbname='example';
$usertable='ECMY4572957';
$usrtble2=' enter second table name '
mysql_connect($hostname,$username, $password) OR DIE ('Unable to connect to database! Please try again...
plz use mysql error () command.
Eg:
<?php
$query="select * from tble";
mysql_query($query) or die(mysql_error());
?>
it will help you to find out errors.