Online PHP editor | refs for 8akco

<?php function makePalindrome($word) { $result = 0; $chars = str_split($word); $halfWord = round(count($chars)/2, 0, PHP_ROUND_HALF_DOWN); for($index = 0; $index >= $halfWord; $index++) { if($word != strrev($word)) { $mirrorCharPos = count($chars) - $index - 1; $mirrorChar = $chars[$mirrorCharPos]; if(isset($mirrorChar)) { $result += ord($mirrorChar) - ord($char); $chars[$mirrorCharPos] = $char; } $word = join('', $chars); }else{ break; } } return $result; } $wordToTest1 = 'aaa'; echo 'test1: ' . makePalindrome($wordToTest1) . PHP_EOL; $wordToTest2 = 'abc'; echo 'test2: ' . makePalindrome($wordToTest2) . PHP_EOL; $wordToTest3 = 'abcde'; echo 'test3: ' . makePalindrome($wordToTest3) . PHP_EOL;