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<?php class Animal{ protected $isAlive; public function __construct(){ $this->isAlive = true; } public function isAlive(){ return $this->isAlive; } } class Cat extends Animal{ public function __construct(){ //we forgot something... } } $cat = new Cat(); var_dump($cat->isAlive());
Output for git.master_jit, git.master, rfc.property-hooks
NULL

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