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<?php class Test { public function metoda(?array $a) { var_dump($a); } } $a = new Test(); $a->metoda();
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 - 8.3.4, 8.3.6
Fatal error: Uncaught ArgumentCountError: Too few arguments to function Test::metoda(), 0 passed in /in/mugV7 on line 12 and exactly 1 expected in /in/mugV7:5 Stack trace: #0 /in/mugV7(12): Test->metoda() #1 {main} thrown in /in/mugV7 on line 5
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Uncaught ArgumentCountError: Too few arguments to function Test::metoda(), 0 passed in /in/mugV7 on line 12 and exactly 1 expected in /in/mugV7:5 Stack trace: #0 /in/mugV7(12): Test->metoda() #1 {main} thrown in /in/mugV7 on line 5
Process exited with code 255.
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
Parse error: syntax error, unexpected '?', expecting variable (T_VARIABLE) in /in/mugV7 on line 5
Process exited with code 255.

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