Online PHP editor | refs for 06jQB

<?php function reverse($string) { $substr1 = ""; $substr2 = ""; $strLength = strlen($string); for ($i = 0; $i < ($strLength / 2); $i++) { $substr1 .= $string[$strLength-$i]; $substr2 .= $string[$i]; } //var_dump($substr1); //var_dump($substr2); return $string = $substr1.$substr2; } var_dump(reverse('12345'));