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<?php $foo = null; is_null($foo) ($foo === null);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Value of type bool is not callable in /in/vCMIA:3 Stack trace: #0 {main} thrown in /in/vCMIA on line 3
Process exited with code 255.

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