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<?php class Karel {} function foo(Karel $karel = null, ?integer $int){ return $karel . $int; } echo foo(null, 2);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: "integer" will be interpreted as a class name. Did you mean "int"? Write "\integer" to suppress this warning in /in/hWRQc on line 5 Fatal error: Uncaught TypeError: foo(): Argument #2 ($int) must be of type ?integer, int given, called in /in/hWRQc on line 9 and defined in /in/hWRQc:5 Stack trace: #0 /in/hWRQc(9): foo(NULL, 2) #1 {main} thrown in /in/hWRQc 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 Warning: "integer" will be interpreted as a class name. Did you mean "int"? Write "\integer" to suppress this warning in /in/hWRQc on line 5 Fatal error: Uncaught TypeError: foo(): Argument #2 ($int) must be of type ?integer, int given, called in /in/hWRQc on line 9 and defined in /in/hWRQc:5 Stack trace: #0 /in/hWRQc(9): foo(NULL, 2) #1 {main} thrown in /in/hWRQc on line 5
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Argument 2 passed to foo() must be an instance of integer or null, int given, called in /in/hWRQc on line 9 and defined in /in/hWRQc:5 Stack trace: #0 /in/hWRQc(9): foo(NULL, 2) #1 {main} thrown in /in/hWRQc on line 5
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
Fatal error: Uncaught TypeError: Argument 2 passed to foo() must be an instance of integer or null, integer given, called in /in/hWRQc on line 9 and defined in /in/hWRQc:5 Stack trace: #0 /in/hWRQc(9): foo(NULL, 2) #1 {main} thrown in /in/hWRQc on line 5
Process exited with code 255.

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