array_push您所描述的两种方法都可以。
$cart = array();$cart[] = 13;$cart[] = 14;// etc//Above is correct. but below one is for further understanding$cart = array();for($i=0;$i<=5;$i++){ $cart[] = $i; }echo "<pre>";print_r($cart);echo "</pre>";是相同的：
<?php$cart = array();array_push($cart, 13);array_push($cart, 14);// Or $cart = array();array_push($cart, 13, 14);?>
