Online PHP editor | refs for dntLu

<?php class Leak { static protected function &leaked(array &$array = null) { $array = array('one'); return $array; } public function toLeaked($array = null) { $array = static::leaked($array); return $array; } public function testLeak() { echo "memory before loop: " . memory_get_usage() . PHP_EOL; for ($i = 0; $i < 20000; $i++) { $leak = $this->toLeaked(); } gc_collect_cycles(); echo "memory after loop: " . memory_get_usage() . PHP_EOL; } } $leak = new Leak(); $leak->testLeak();