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<?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);
Output for git.master, git.master_jit, rfc.property-hooks
Hello World

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