class-autoload.inc.php

<?php

spl_autoload_register('myAutoLoader');

function myAutoLoader($className){
$url=$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];

if(strpos($url,'includes')!==false)
{
$path='../classes/';
}
else
{
$path='classes/';
}
$extension='.class.php';
require_once $path.$className.$extension;
}

}
?>