Long running script that doesn't care if the user presses stop

longprocess_trick.php

<?php
// Ignore user aborts and allow the script
// to run forever
ignore_user_abort(true);

ob_start();// if notifying the user

set_time_limit(0);



// let the user know that they can press stop or navigate away without
// interrupting

ob_flush();
flush();

// do stuff that takes a long time