Online PHP editor | output for FnIre

<?php //echo '<pre>';print_r($sArray);echo '</pre>';die; function findRepeatingStringCount($sArray) { $left = $sArray[0]; $right = $sArray[0]; $i = 0; while ($i < count($sArray)) { if ($left == $right) { return $i + 1; } $right = $sArray[$i]; $i++; } return 0; } $s = "abcabcbb"; // string to array $sArray = str_split($s); echo '<pre>';print_r(findRepeatingStringCount($sArray));echo '</pre>';die;