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<?php function a($a, $b = null) { var_dump($a); var_dump(isset($a)); var_dump(is_null($a)); var_dump($b); var_dump(isset($b)); var_dump(is_null($b)); } a(); print "\n\n---\n\n"; a(1); print "\n\n---\n\n"; a(1,2); print "\n\n---\n\n"; a(null); print "\n\n---\n\n"; a(null, null); print "\n\n---\n\n";
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ArgumentCountError: Too few arguments to function a(), 0 passed in /in/nfNfC on line 12 and at least 1 expected in /in/nfNfC:3 Stack trace: #0 /in/nfNfC(12): a() #1 {main} thrown in /in/nfNfC on line 3
Process exited with code 255.

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