Second-hand recycling website developed using PHP support FAQ-PHP Tutorial-php.cn

Second-hand recycling website developed using PHP support FAQ

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Release： 2023-07-01 18:12:01

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Using PHP to develop second-hand recycling website support FAQ

With the progress of society and the improvement of environmental awareness, second-hand recycling websites are getting more and more attention and love from people. It is very important for second-hand recycling websites to provide users with comprehensive and timely answers to frequently asked questions. In this article, we will introduce how to use PHP to develop a second-hand recycling website that supports FAQs, and provide corresponding code examples.

1. Database design and creation

In order to store common questions and answers, we first need to design the corresponding database table. Create a database named "faq" in MySQL and create a table named "questions" that contains two fields: id and question.

CREATE DATABASE faq;

USE faq;

CREATE TABLE questions (
id INT AUTO_INCREMENT PRIMARY KEY,
question VARCHAR(255) NOT NULL
);

2. Website page design and development

Homepage design and development
First, we need to design a website homepage to display the main functions of the second-hand recycling website and features, and provides links to frequently asked questions.

<!DOCTYPE html>
<html>
<head>
  <title>二手回收网站</title>
</head>
<body>
  <h1>欢迎来到二手回收网站！</h1>
  <p>在这里，您可以找到您不再需要的物品，并且将其回收再利用。</p>
  <h3>常见问题解答</h3>
  <ul>
    <li><a href="faq.php">如何发布一个回收信息？</a></li>
    <li><a href="faq.php">如何联系回收员？</a></li>
    <li><a href="faq.php">回收后可以获得什么样的回报？</a></li>
  </ul>
</body>
</html>

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FAQ page design and development
Create a file named "faq.php" as a FAQ page, and implement the method of obtaining questions from the database and displaying them Function.

<!DOCTYPE html>
<html>
<head>
  <title>常见问题解答</title>
</head>
<body>
  <h1>常见问题解答</h1>
  <?php
    // 连接数据库
    $conn = new mysqli("localhost", "root", "password", "faq");
    if ($conn->connect_error) {
      die("连接数据库失败: " . $conn->connect_error);
    }

    // 从数据库中获取问题并展示
    $sql = "SELECT * FROM questions";
    $result = $conn->query($sql);

    if ($result->num_rows > 0) {
      while($row = $result->fetch_assoc()) {
        echo "<p>".$row["question"]."</p>";
      }
    } else {
      echo "暂时没有常见问题";
    }

    $conn->close();
  ?>
</body>
</html>

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3. Code analysis and explanation

In the above code, we establish a connection with the database through the mysqli extension and obtain the problems in the database. When connecting to the database, you need to replace "localhost", "root", "password" and "faq" in the code with the corresponding database connection address, user name, password and database name.

In the faq.php file, we obtain questions from the database by using the SQL query statement "SELECT * FROM questions", and display the questions by traversing the result set through a while loop.

4. Summary

The second-hand recycling website developed using PHP supports FAQs which is an important function to effectively improve the user experience. In this article, we describe how to implement this functionality using PHP and MySQL, and provide corresponding code examples. We hope that readers can develop practical and convenient FAQ functions for their own second-hand recycling websites through the guidance of this article.

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