How to Clear the cache with PHP script in Magento

It always take time to get rid of the Magento cache. However cache is needed to execute the request faster. One way of clearing the cache is delete all the directories inside the /var/cache directory. Doing that manually it will take some time if you are connected to the FTP server.
The easiest way of clearing the cache in Magento is here.

<?php

ini_set('max_execution_time', 3600);
ini_set("memory_limit","256M");

$script = "rm -rf var/cache/*";
$results = system($script,$retval);
echo " Cache cleared, RETURN VALUE: $retval\n";

?>

Name the file clearcache.php. Put it in the root directory of the Magento setup & execute in the browser.

hope it helps.. Thanks....