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run code in 150+ php & hhvm versions
Bugs & Features
<?php function longest_palendrome($string) { $words = explode(' ', $string); $longest = ''; foreach ($words as $word) { $letters = $reversed = str_split($word); array_reverse($reversed); if ($letters === implode('', $reversed) && strlen($word) > strlen($longest)) { $longest = $word; } } return $word; } echo longest_palendrome("i ama racecar");
Output for 5.0.0 - 5.6.21, hhvm-3.12.0, 7.0.0 - 7.1.0
racecar
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: str_split() in /in/tNZGU on line 7
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: str_split() in /in/tNZGU on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: str_split() in /in/tNZGU on line 7