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<?php $foo = function (integer $bar = null ) { var_dump($bar); }; $foo(); $foo(null); $foo(100); $foo('100'); $foo([100]);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: "integer" will be interpreted as a class name. Did you mean "int"? Write "\integer" to suppress this warning in /in/ihMSH on line 2 NULL NULL Fatal error: Uncaught TypeError: {closure}(): Argument #1 ($bar) must be of type ?integer, int given, called in /in/ihMSH on line 8 and defined in /in/ihMSH:2 Stack trace: #0 /in/ihMSH(8): {closure}(100) #1 {main} thrown in /in/ihMSH on line 2
Process exited with code 255.

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