What to do if php submission parameters are garbled

Solution to garbled php submission parameters: 1. Open the corresponding PHP file; 2. Check the "$_POST["pro_name"]" code; 3. Modify the content to "echo '';" is enough.

The operating environment of this tutorial: Windows 7 system, PHP version 8.1, Dell G3 computer.

What should I do if the php submission parameters are garbled?

Problem description:

PHP $_POST submits Chinese garbled characters

html:
<form action="__APP__/ShoppingCart/add" method="POST">
<br/><b>{$pro_name}</b><br/><br/>
价格：￥{$pro_price}<br/><br/>
已售出：{$pro_sale}件
数量<input type="text" size="2" name="pro_num" value="1"/><input type="submit" value="加入购物车" />
<input type="hidden" name="pro_id" value="{$pro_id}" />
<input type="hidden" name="pro_name" value="{$pro_name}" />
<input type="hidden" name="pro_price" value="{$pro_price}" />
</form>
action:
public function add(){
$user = session("user_name");
if(session("user_name")){
header("Content-Type:text/html;charset=utf8");
request.setCharacterEncoding("UTF-8");
$common = D("Common");
$data["user_id"] = $user[0]["user_id"];
$data["user_name"] = $user[0]["user_name"];
$data["pro_id"] = $_POST["pro_id"];
$data["pro_name"] = $_POST["pro_name"];
$data["pro_price"] = $_POST["pro_price"];
$data["pro_num"] = $_POST["pro_num"];
$data["pro_total"] = $_POST["pro_num"]*$_POST["pro_price"];
dump($data);
echo $data["pro_name"];
}
}

Why is the received $_POST["pro_name"] garbled? I have checked the source code of the page and the hidden field has not become garbled

Solution:

header("Content-Type:text/html;charset=utf8");

is changed to

echo &#39;<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">&#39;;

Recommended study: " PHP video tutorial》

The above is the detailed content of What to do if php submission parameters are garbled. For more information, please follow other related articles on the PHP Chinese website!