Online PHP editor | refs for XTR3h

<?php $data_arr= array("101","102","103","103","104","101","105","106","106","106","107","108","108","109","110","102","111"); $uniq = array(); $last = null; foreach ($data_arr as $elem) { if ($elem != $last) { $last = $elem; $uniq[] = $elem; } } echo implode(' ', $uniq);