我将一些数据从表单发布到另一个页面.这是一个购物车,提交的表单在页面上生成之前取决于购物车中有多少项目.例如,如果只有 1 个项目,那么我们只有字段名称item_name_1",它应该存储一个值,如Sticker"和item_price_1",它存储该项目的价格.但是如果有人有 5 个项目,我们将需要 'item_name_2'、'item_name_3' 等来获取每个项目的值,直到第五个.
I post some data over to another page from a form. It's a shopping cart, and the form that's being submitted is being generated on the page before depending on how many items are in the cart. For example, if there's only 1 items then we only have the field name 'item_name_1' which should store a value like "Sticker" and 'item_price_1' which stores the price of that item. But if someone has 5 items, we would need 'item_name_2', 'item_name_3', etc. to get the values for each item up to the fifth one.
遍历这些项目以获取值的最佳方法是什么?
What would be the best way to loop through those items to get the values?
这是我所拥有的,这显然不起作用.
Here's what I have, which obviously isn't working.
extract($_POST); $x = 1; // Assuming there's always one item we're on this page, we set the variable to get into the loop while(${'item_name_' .$x} != '') { echo ${'item_name' .$x}; $x++; }我对这种用法还比较陌生,所以我不完全是处理它的最佳方式.
I'm still relatively new to this kind of usage, so I'm not entirely how the best way to deal with it.
谢谢.
推荐答案使用类似数组的字段:
<input name="name_for_the_items[]"/>您可以遍历字段:
foreach($_POST['name_for_the_items'] as $item) { //do something with $item }更多推荐
来自表单的 POST 的 Foreach 值
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