<?php $str = 'a1b2c3 abc123'; $part = explode(' ', $str); $reverted = strrev($part[1]); $arr1 = str_split($part[1]); $arr2 = str_split($part[0]); if(count(array_diff($arr1, $arr2))){ echo "NO"; } else{ echo "YES"; }
You have javascript disabled. You will not be able to edit any code.