<?php $handle = fopen ("php://stdin","r"); fscanf($handle,"%d",$q); for($a0 = 0; $a0 < $q; $a0++){ fscanf($handle,"%s",$s); // your code goes here $result =null; $string_array = str_split($s); foreach(str_split("hackerrank") as $x){ foreach($string_array as $letter){ if($letter===$x){ $result.=$letter; break; } } } if($result === "hackerrank"){ echo "YES"."\r\n"; }else{ echo "NO"."\r\n"; } } ?>