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<?php print_r(array_diff([],['test'])); print_r(array_diff(['test'],[])); print_r(array_diff(null,['test'])); print_r(array_diff(['test'],null));
Output for git.master, git.master_jit, rfc.property-hooks
Array ( ) Array ( [0] => test ) Fatal error: Uncaught TypeError: array_diff(): Argument #1 ($array) must be of type array, null given in /in/RjIlK:4 Stack trace: #0 /in/RjIlK(4): array_diff(NULL, Array) #1 {main} thrown in /in/RjIlK on line 4
Process exited with code 255.

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