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php基础问题，会话变量 数组,请指点
- WBOYOriginal
- 2016-06-23 13:56:02863browse
if($new) { //new item selected if(!isset($_SESSION['cart'])) { $_SESSION['cart'] = array(); // $_SESSION['items'] = 0; $_SESSION['total_price'] ='0.00'; } if(isset($_SESSION['cart'][$new])) //这一句是什么意思？？$new是一个传入的参数，该参数是一本书的isbm码，9787111262817,请问$_SESSION['cart'][$new] 是什么意思？？这样会得出什么结果？能否详细描述下。感谢ing.... $_SESSION['cart'][$new]++; else $_SESSION['cart'][$new] = 1;
回复讨论(解决方案)
??你能看懂??
$new='a';
$_SESSION['cart']=array(
'a'=>'xxx',
);
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