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<?php $items = array(10, 20, 30); $items1 = array(11, 21, 31); $udiff = array_udiff($items, $items1); var_dump($udiff);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: array_udiff(): Argument #2 must be a valid callback, array callback must have exactly two members in /in/th1oN:7 Stack trace: #0 /in/th1oN(7): array_udiff(Array, Array) #1 {main} thrown in /in/th1oN on line 7
Process exited with code 255.

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