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<?php define('NULL_CONSTANT', null); function bla(array $arr = NULL_CONSTANT) { var_dump($arr); } bla(); bla(null); bla(array());
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: bla(): Argument #1 ($arr) must be of type array, null given, called in /in/BdEX6 on line 9 and defined in /in/BdEX6:5 Stack trace: #0 /in/BdEX6(9): bla() #1 {main} thrown in /in/BdEX6 on line 5
Process exited with code 255.

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