Start Building Websites Today: Learn PHP the Fun and Easy Way

There are steps to follow to build a website using PHP: Prepare a text editor and web server, and install PHP. Write PHP code, such as comments, variables, and output, and wrap it in <?php> tags. Create a PHP file, such as index.php, that contains the welcome page code. Upload the PHP file to the web server root directory. Create HTML for the form, specifying actions and methods. Create a PHP handler (such as contact.php) to handle form submissions.

Build websites easily with PHP

PHP is a powerful open source scripting language for building dynamic and interactive websites website. It is easy to learn and has a variety of tools and libraries to make the development process easier. In this tutorial, we will learn the basics of PHP and create a simple website to practice our skills.

Prerequisites

• Text editor or IDE (e.g. Visual Studio Code, Sublime Text)
• Apache or Nginx web server
• PHP installed on the server

PHP Basics

PHP Use the <?php and ?> tags to mix PHP code with HTML and CSS together. Here is some basic syntax for PHP:

// 注释
<?php // 这就是注释 ?>

// 变量
<?php $name = "John Doe"; ?>

// 输出
<?php echo "欢迎，" . $name; ?>

Creating a PHP file

Use a text editor to create a file named index.php. Add the following code:

<?php
   echo "<h1>欢迎来到我的网站</h1>";
   echo "<p>这是一个用 PHP 构建的简单页面</p>";
?>

Set up the web server

Upload the index.php file to the root directory of the web server. Visit the URL where this file is located and you will see the page generated by PHP.

Practical Case: Creating a Contact Form

Next, we will create a contact form and handle form submission.

Add HTML form

<form action="contact.php" method="post">
   <label for="name">姓名：</label>
   <input type="text" name="name" id="name">
   <br>
   <label for="email">电子邮件：</label>
   <input type="email" name="email" id="email">
   <br>
   <label for="message">留言：</label>
   <textarea name="message" id="message"></textarea>
   <br>
   <input type="submit" value="提交">
</form>

Create PHP handler

Another PHP file named contact.php :

<?php
   if ($_SERVER['REQUEST_METHOD'] == 'POST') {
       // 处理表单提交
       $name = $_POST['name'];
       $email = $_POST['email'];
       $message = $_POST['message'];

       // 验证输入并发送电子邮件
   }
?>

Summary

In this article, we learned the basics of PHP and created a simple website. Through practical examples, we show how to use PHP forms and handle form submissions. As we delve deeper into PHP, you'll be able to build more complex and interactive websites.

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