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<?php function longest_palendrome($string) { $words = split(' ', $string); $longest = ''; foreach ($words as $word) { $letters = $reversed = split('', $word); array_reverse($reversed); if ($letters === join('', $reversed) && strlen($word) > strlen($longest)) { $longest = $word; } } return $word; } echo longest_palendrome("i ama racecar");
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Call to undefined function split() in /in/3bS6S:4 Stack trace: #0 /in/3bS6S(17): longest_palendrome('i ama racecar') #1 {main} thrown in /in/3bS6S on line 4
Process exited with code 255.

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