Online PHP editor | refs for mFXAM

<?php echo "before allocation: ".memory_get_usage(true).PHP_EOL; $object = str_repeat("\0", 1000000); echo "after allocation: ".memory_get_usage(true).PHP_EOL; $object2 = $object; echo "after assignment: ".memory_get_usage(true).PHP_EOL; $object3 =& $object; echo "after reference assignment: ".memory_get_usage(true).PHP_EOL;