Online PHP editor | refs for FVSRU

<?php $string = 'test text long long test text'; $array = explode(' ',$string); $finalString = ''; foreach($array as $key=> $arr){ if($key ==0){ $finalString = $arr; }else{ if($arr == $array[$key-1]){ $finalString .='-'.$arr; }else{ $finalString .=' '.$arr; } } } echo $finalString;