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 '463a8b7108e533b58e342a7dbb7afa6b';" 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:


{$pro_name}


价格：￥{$pro_price}


已售出：{$pro_sale}件
数量




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 '';

Recommended study: " PHP video tutorial》

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