Online PHP editor | refs for CcOOK

<?php $_POST['nim'] = 'Hrllo'; $_POST['nama'] = 'Data'; $_POST['score'] = '33'; $_SESSION['nim'][] = $_POST['nim']; $_SESSION['nama'][] = $_POST['nama']; $_SESSION['score'][] = $_POST['score']; $string = ''; foreach($_SESSION as $main_key => $key) { foreach($key as $data => $value) { $string .= $main_key . ":" . $value . ' '; } } $string = rtrim($string, ' '); echo $string;