Crash PHP!

test_heap_corruption.php

<?php
// origin: https://bugs.php.net/bug.php?id=40479

define('OBJECT_COUNT', 20 * 1000);

class Object {
    private static $world = array();
    private static $maxGuid = 0;
    protected $_guid = null;
    public function __construct() {
         self::$world[$this->_guid = self::$maxGuid++] = $this;
    }
    public function __destruct() {
         unset(self::$world[$this->_guid]);
    }
}

for ($i = 0; $i < OBJECT_COUNT; ++$i) {
    new Object();
}

// You probably won't see this because of the "zend_mm_heap corrupted"
echo 'If you see this, try to increase OBJECT_COUNT to 100,000';

// adding gc_disable stops this from dumping core
// remove the following line to produce core dumps
gc_disable();
?>