How to build a form using PHP?-PHP Tutorial-php.cn

How to build a form in PHP? Create a form using the

tag, specifying the action and method attributes. Collect user input, including text, email, radio buttons, and checkboxes, through theelement. Use the $_POST or $_GET array to collect submitted data. Write server-side scripts to process form data, such as validating, storing, or sending emails.

如何使用 PHP 构建表单？

How to build a form in PHP

Forms are an indispensable component in web development and are used to collect user input. This article will take you through how to build a form in PHP and provide practical examples for your reference.

Syntax for building a form

To create a form, you need to use thetag. Thetag has the following attributes:

action: Specifies the script file to process the form data after submitting the form.
method: Specify the HTTP method to submit data to the server. Common methods areGETandPOST.

The following is a simple PHP form syntax:

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Collect and process form data

When the user submits the form, the data will Submit to server-side script via the$_POSTarray (for thePOSTmethod) or the$_GETarray (for theGETmethod).

The following is a sample code for processing form data:

$name = $_POST['name']; $email = $_POST['email']; // 验证表单数据或将其存储到数据库中，具体取决于你的需求

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Practical case: Contact form

Let us build a simple contact form as a practical case .

HTML code:

 姓名：  
 邮箱地址：  
 留言：

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PHP code (submit.php):

// 收集表单数据 $name = $_POST['name']; $email = $_POST['email']; $message = $_POST['message']; // 验证表单数据（可省略） // 将表单数据发送至邮箱 $to = "youremail@example.com"; $subject = "联系表单请求来自 $name"; $body = "邮箱地址：$email\n留言：$message"; mail($to, $subject, $body); // 输出成功消息 echo "感谢您的留言。我们将在 24 小时内回复您。";

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