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<?php $vals = array('3','4','5'); var_dump(array_reduce($vals, 'ctype_digit', false)); var_dump(array_reduce($vals, 'ctype_digit', true));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ArgumentCountError: ctype_digit() expects exactly 1 argument, 2 given in /in/08kmi:4 Stack trace: #0 [internal function]: ctype_digit(false, '3') #1 /in/08kmi(4): array_reduce(Array, 'ctype_digit', false) #2 {main} thrown in /in/08kmi on line 4
Process exited with code 255.

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