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<?php class MyEmpty { public $state; public function check(&$var) { $this->state = empty($var); return $this; } public function _or(&$var) { if($this->state) return $this; $this->state = $state || empty($var); return $this; } public function _and(&$var) { if(!$this->state) return $this; $this->state = $state && empty($var); return $this; } } $empty = new MyEmpty; $var = 'some'; var_dump($empty->check($foo['bar'])->_or($var)->state); var_dump($empty->check($foo['bar'])->_and($var)->state);
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) Warning: Undefined variable $state in /in/C31S6 on line 22 bool(false)

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