<?php class A { public function y() { $GLOBALS['x'] = null; return true; } public function z() { echo "Hello World\n"; } } function nullthrows($x) { if ($x === null) { throw new Exception('Unexpected null'); } return $x; } function foo($x) { if ($x && $x->y()) { nullthrows($x)->z(); } } $GLOBALS['x'] = new A(); $x = &$GLOBALS['x']; foo($x);
You have javascript disabled. You will not be able to edit any code.