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<?php function cast($val, $c, $e) { echo $e; if (is_numeric($val)) { return $val + 0; } //return 0; return $val; } $arr = ['stri33ng123', 84, 76.7, '45.6', '67.5e45', '56,9']; array_walk($arr , 'cast');
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ArgumentCountError: Too few arguments to function cast(), 2 passed and exactly 3 expected in /in/pDHLv:4 Stack trace: #0 [internal function]: cast('stri33ng123', 0) #1 /in/pDHLv(17): array_walk(Array, 'cast') #2 {main} thrown in /in/pDHLv on line 4
Process exited with code 255.

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