<?php
  $toreplace = "/var/www/"; // the old path to root
  $replace = "C:/wamp/www/data"; // the new path to root
  foreach(glob("*.php") as $php_file) {
    $data = file_get_contents($php_file);
    $data = str_replace($toreplace,$replace,$data);
    file_put_contents($php_file,$data);
  }
?>