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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 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
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.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20
Warning: Missing argument 1 for a(), called in /in/nfNfC on line 12 and defined in /in/nfNfC on line 3 Notice: Undefined variable: a in /in/nfNfC on line 4 NULL bool(false) Notice: Undefined variable: a in /in/nfNfC on line 6 bool(true) NULL bool(false) bool(true) --- int(1) bool(true) bool(false) NULL bool(false) bool(true) --- int(1) bool(true) bool(false) int(2) bool(true) bool(false) --- NULL bool(false) bool(true) NULL bool(false) bool(true) --- NULL bool(false) bool(true) NULL bool(false) bool(true) ---
preferences:
198.55 ms | 403 KiB | 212 Q