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<?php var_dump(is_null());var_dump(is_null(null));var_dump(is_null(null, null));var_dump(is_null(null, null, null));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ArgumentCountError: is_null() expects exactly 1 argument, 0 given in /in/PLn7o:2 Stack trace: #0 /in/PLn7o(2): is_null() #1 {main} thrown in /in/PLn7o on line 2
Process exited with code 255.

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