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<?php class Kitchen { private $yummy = 'cake'; } $sweetsThief = function & (Kitchen $kitchen) { return $kitchen->yummy; }; $kitchen = new Kitchen(); $sweetsThief = Closure::bind($sweetsThief, null, $kitchen); $cake = & $sweetsThief($kitchen); $cake = 'lie'; var_dump('the cake is a ' . $sweetsThief($kitchen));
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.14, 8.4.1 - 8.4.2
string(17) "the cake is a lie"
Output for 5.3.0 - 5.3.29
Fatal error: Call to undefined method Closure::bind() in /in/l6j8P on line 14
Process exited with code 255.

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