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<?php class Fooer { private $bar; public function cleanBar() { unset($this->bar); } public function doThings() { if ($this->bar) { return 'things'; } return 'no things!'; } } $foo = new Fooer(); $foo->cleanBar(); var_dump($foo->doThings());
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined property: Fooer::$bar in /in/pt77Z on line 8 string(10) "no things!"

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