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<?php class A { function __get($a){ return new A; } function __isset($a){ echo "exists"; if($a === 'a'){ return true; }else{ return false; } } } $x = new A; var_dump($x->a->b ?? 20);
Output for git.master, git.master_jit, rfc.property-hooks
existsexistsint(20)

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