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<?php function foo(null $a) { var_dump($a); } foo(null); foo(42);
Output for git.master, git.master_jit, rfc.property-hooks
NULL Fatal error: Uncaught TypeError: foo(): Argument #1 ($a) must be of type null, int given, called in /in/5UR5A on line 6 and defined in /in/5UR5A:3 Stack trace: #0 /in/5UR5A(6): foo(42) #1 {main} thrown in /in/5UR5A on line 3
Process exited with code 255.

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