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<?php $arr = array(3,5,"joseph","blah"); array_walk($arr, 'strtoupper'); print_r($arr);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ArgumentCountError: strtoupper() expects exactly 1 argument, 2 given in /in/HVch7:3 Stack trace: #0 [internal function]: strtoupper(3, 0) #1 /in/HVch7(3): array_walk(Array, 'strtoupper') #2 {main} thrown in /in/HVch7 on line 3
Process exited with code 255.

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