<?php

$path = './uploads/msme/';
if ($handle = opendir($path)) {

    while (false !== ($file = readdir($handle))) { 
        $filelastmodified = filemtime($path . $file);
        // 7776000 seconds for 3 months difference
        // 5184000 seconds for 2 months difference
        if((time() - $filelastmodified) > 5184000) {
           unlink($path . $file);
        }
    }

    closedir($handle); 
}

?>