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<?php class Karel {} function foo(Karel $karel = null, ?integer $int){ return $karel . $int; } echo foo(null, 2);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: "integer" will be interpreted as a class name. Did you mean "int"? Write "\integer" to suppress this warning in /in/hWRQc on line 5 Fatal error: Uncaught TypeError: foo(): Argument #2 ($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.

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