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<?php class Foo { private $a = "php7"; function bar(array $data) { return $this->$data['prop']; } } $foo = new Foo; var_dump($foo->bar(['prop' => 'a']));
Output for rfc.property-hooks
Warning: Array to string conversion in /in/62FEh on line 7 Warning: Undefined property: Foo::$Array in /in/62FEh on line 7 Warning: Trying to access array offset on null in /in/62FEh on line 7 NULL
Output for git.master, git.master_jit
Warning: Array to string conversion in /in/62FEh on line 7 Warning: Undefined property: Foo::$Array in /in/62FEh on line 7 Warning: Trying to access array offset on value of type null in /in/62FEh on line 7 NULL

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