Backend Development
PHP Tutorial
Second-hand recycling website developed using PHP supports automatic matching of keywords
Second-hand recycling website developed using PHP supports automatic matching of keywords
The second-hand recycling website developed using PHP supports automatic keyword matching
With the improvement of environmental awareness and the gradual scarcity of resources, the recycling and reuse of second-hand items has attracted more and more attention. The emergence of second-hand recycling websites provides a convenient platform for people to find items that need to be recycled or to hand over their idle items to professional recycling agencies for processing. In order to improve user experience and search accuracy, we will use PHP to develop a second-hand recycling website that supports automatic keyword matching.
Before we begin, let’s briefly introduce PHP. PHP is a server-side scripting language especially suitable for website development. It can be embedded into HTML, allowing developers to write dynamic content directly in web pages. Second-hand recycling websites developed using PHP can realize functions such as interaction with users, data processing and display.
First, we need to create a homepage so that users can enter keywords to search. The homepage can be laid out and beautified using HTML and CSS, and user search requests can be processed through PHP. On the homepage, we can set up a text input box and a search button. Users can enter keywords in the text input box and then click the search button to search. The HTML code is as follows:
<!DOCTYPE html>
<html>
<head>
<title>二手回收网站</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="container">
<h1>二手回收网站</h1>
<form action="search.php" method="GET">
<input type="text" name="keyword" placeholder="请输入关键词">
<input type="submit" value="搜索">
</form>
</div>
</body>
</html>In the above code, we set up a search form through the <form> element, and its action attribute points to the search processing PHP file search.php, use the GET method to submit the form data. The keywords entered by the user will be passed to search.php for processing through name="keyword".
Next, let’s take a look at the code example of the search.php file. In this file, we will get the keywords entered by the user and match them with the item information saved in the database. Successfully matched items will be displayed to the user in the form of a list. The PHP code is as follows:
<?php
// 连接数据库
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "second_hand";
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
die("连接失败：" . $conn->connect_error);
}
// 获取用户输入的关键词
$keyword = $_GET["keyword"];
// 根据关键词从数据库中查询匹配的物品信息
$sql = "SELECT * FROM items WHERE item_name LIKE '%$keyword%'";
$result = $conn->query($sql);
// 列表展示匹配的物品信息
if ($result->num_rows > 0) {
while ($row = $result->fetch_assoc()) {
echo "<p>{$row['item_name']} - {$row['item_price']}</p>";
}
} else {
echo "没有找到匹配的物品";
}
$conn->close();
?>In the above code, we first connect to a database named second_hand. Then, obtain the keywords entered by the user through the $_GET super global variable, and conduct a fuzzy matching query between the keywords and the items table in the database. Finally, use the while loop to display the matching item information to the user in list form.
To sum up, the second-hand recycling website we developed using PHP supports automatic matching of keywords and has good user experience and search accuracy. Users can easily enter keywords to search, and the system will automatically match the corresponding item information and display it to the user. In this way, users can easily find the second-hand items they need, achieving effective use of resources and sustainable development of the environment.
The above is the detailed content of Second-hand recycling website developed using PHP supports automatic matching of keywords. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1655
14
1413
52
1306
25
1252
29
1226
24
Teach you step by step to develop your own forum website using PHP
Oct 28, 2023 am 08:23 AM
With the rapid development of the Internet and people's increasing demand for information exchange, forum websites have become a common online social platform. Developing a forum website of your own can not only meet your own personalized needs, but also provide a platform for communication and sharing, benefiting more people. This article will teach you step by step how to use PHP to develop your own forum website. I hope it will be helpful to beginners. First, we need to clarify some basic concepts and preparations. PHP (HypertextPreproces
How to use Memcache in PHP development?
Nov 07, 2023 pm 12:49 PM
In web development, we often need to use caching technology to improve website performance and response speed. Memcache is a popular caching technology that can cache any data type and supports high concurrency and high availability. This article will introduce how to use Memcache in PHP development and provide specific code examples. 1. Install Memcache To use Memcache, we first need to install the Memcache extension on the server. In CentOS operating system, you can use the following command
How to develop a hotel booking website using PHP
Oct 28, 2023 am 08:19 AM
How to use PHP to develop a hotel booking website With the development of the Internet, more and more people are beginning to arrange their travels through online booking. As one of the common online booking services, hotel booking websites provide users with a convenient and fast way to book hotels. This article will introduce how to use PHP to develop a hotel reservation website, allowing you to quickly build and operate your own online hotel reservation platform. 1. System requirements analysis Before starting development, we need to conduct system requirements analysis first to clarify what the website we want to develop needs to have.
Describe the SOLID principles and how they apply to PHP development.
Apr 03, 2025 am 12:04 AM
The application of SOLID principle in PHP development includes: 1. Single responsibility principle (SRP): Each class is responsible for only one function. 2. Open and close principle (OCP): Changes are achieved through extension rather than modification. 3. Lisch's Substitution Principle (LSP): Subclasses can replace base classes without affecting program accuracy. 4. Interface isolation principle (ISP): Use fine-grained interfaces to avoid dependencies and unused methods. 5. Dependency inversion principle (DIP): High and low-level modules rely on abstraction and are implemented through dependency injection.
How to use PHP to develop an online tutoring service platform
Oct 28, 2023 am 09:01 AM
How to use PHP to develop an online tutoring service platform. With the rapid development of the Internet, online tutoring service platforms have attracted more and more people's attention and demand. Parents and students can easily find suitable tutors through such a platform, and tutors can also better demonstrate their teaching abilities and advantages. This article will introduce how to use PHP to develop an online tutoring service platform. First, we need to clarify the functional requirements of the platform. An online tutoring service platform needs to have the following basic functions: Registration and login system: users can
How to implement version control and code collaboration in PHP development?
Nov 02, 2023 pm 01:35 PM
How to implement version control and code collaboration in PHP development? With the rapid development of the Internet and the software industry, version control and code collaboration in software development have become increasingly important. Whether you are an independent developer or a team developing, you need an effective version control system to manage code changes and collaborate. In PHP development, there are several commonly used version control systems to choose from, such as Git and SVN. This article will introduce how to use these tools for version control and code collaboration in PHP development. The first step is to choose the one that suits you
How to use PHP to develop the coupon function of the ordering system?
Nov 01, 2023 pm 04:41 PM
How to use PHP to develop the coupon function of the ordering system? With the rapid development of modern society, people's life pace is getting faster and faster, and more and more people choose to eat out. The emergence of the ordering system has greatly improved the efficiency and convenience of customers' ordering. As a marketing tool to attract customers, the coupon function is also widely used in various ordering systems. So how to use PHP to develop the coupon function of the ordering system? 1. Database design First, we need to design a database to store coupon-related data. It is recommended to create two tables: one
How to use Memcache for efficient data writing and querying in PHP development?
Nov 07, 2023 pm 01:36 PM
How to use Memcache for efficient data writing and querying in PHP development? With the continuous development of Internet applications, the requirements for system performance are getting higher and higher. In PHP development, in order to improve system performance and response speed, we often use various caching technologies. One of the commonly used caching technologies is Memcache. Memcache is a high-performance distributed memory object caching system that can be used to cache database query results, page fragments, session data, etc. By storing data in memory
