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<?php class Cl { public function __get($n) { if ($n === 'test') { return null; } return $this->$n; // default fallback } public function __isset($n) { if ($n === 'test') { return true; // __isset() is the only way to return if property exists, returning true for null value violates isset() definition } return $this->$n; // default fallback } } $cl = new Cl(); var_dump($cl->test); var_dump(isset($cl->test));
Output for git.master, git.master_jit, rfc.property-hooks
NULL bool(true)

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