Online PHP editor | refs for A7OgZ

<?php $array = array('title1','title2','title2','title3','title4','title5','title5','title6','title6','title5'); sort($array); $unique_length = count( array_unique($array) ); $total_dupes = 0; $clean = array(); for ($i=0; $i<$unique_length; $i++) { $current = array_shift($array); if ($current === NULL)//already have all elements break; $found = 1; while (($key = array_search($current, $array)) !== FALSE) {//search for dupes $found++; unset($array[$key]); } if ($found == 1) array_push($clean, $current); else { $dupes = array(); for ($i=0; $i<$found; $i++) $dupes[] = $current; $total_dupes++; $clean['dupe'.$total_dupes] = $dupes; } } print_r($clean);