Waste fixed amount of memory in PHP

waste.php

<?php

/**
 * Yeah yeah yeah, as if we need this, right?
 * @author Phillip Jackson <philwinkle@gmail.com>
 * @twitter philwinkle
*/

function waste($size){
        $initSize = memory_get_usage();
        while( (memory_get_usage()-$initSize) < $size){
           //Prevent gc from running by assigning to GLOBALS
           //Courtesy of @foomanNZ
           $GLOBALS['waste'][] = 1;
        }
}



waste(10485760); //10MB in bytes
waste(134217728); //128MB in bytes, default PHP CLI limit