Web Front-end
JS Tutorial
jQuery+AJAX+PHP+MySQL develops search function without jump or refresh
jQuery+AJAX+PHP+MySQL develops search function without jump or refresh
This article mainly introduces the function of jQuery AJAX PHP MySQL development search without jump and refresh. It has certain reference value. Now I share it with everyone. Friends in need can refer to it
Knowledge points : ajax submits the form, php queries the database, php returns the json array, and javascript traverses and outputs the json array
Demonstration:
1. When no keywords are entered in the form, " is returned Please enter keywords..."
#2. When the keyword query entered in the form fails, "No results"## will be returned.
nbsp;html>
<meta>
<meta>
<title>AJAX搜索</title>
<style>
*{margin:0px;padding:0px;}
h2{
text-align: center;
}
#search_con{
width: 300px;
margin:10px auto;
}
#keywords{
width: 300px;
margin-top: 10px;
height: 30px;
}
#btn{
width: 305px;
height: 35px;
margin-top: 10px;
}
#search_result{
width: 300px;
margin:30px auto;
}
</style>
<script></script>
<script>
$(function(){
$("button").click(function(){
var inputVal = $("#keywords").val();
$.ajax({
type:"GET",
url:"search.php?keywords=" + inputVal,
dataType:"json",
success:function(data){
$(function(){
var con="";
$.each(data,function(i,data){
if (data.result == "0") {
con+="<p>请输入关键词..."
}else if(data.result == "1"){
con+="<p>无结果"
}else{
con+="<p>"+data.title+""
}
});
console.log(con);
$("#search_result").html(con);
})
return false;
}
})
})
})
</script>
<!-- 表单 -->
<p>
</p><?php header("Content-type:application/json");
//定义参数
$keywords = $_GET["keywords"];
//获取数据库配置
require_once("config.php");
//连接数据库
$con = mysql_connect($host,$username,$password);
if (!$con)
{
die('连接数据库失败，失败原因：' . mysql_error());
}
//设置数据库字符集
mysql_query("SET NAMES UTF8");
//查询数据库
mysql_select_db($db, $con);
//过滤关键词左右空格
$keyword = trim($keywords);
if (empty($keyword)) {
//如果关键词为空，则返回result=0
echo "[{\"result\":\"0\"}]";
}else{
$result = mysql_query("SELECT * FROM $tb WHERE title like '%$keyword%' ORDER BY ID DESC");
$num = mysql_num_rows($result);
if ($num) {
$search_result = array();
while($row = mysql_fetch_array($result)){
$search_result[] = $row;
}
// 将数组转成json格式
echo json_encode($search_result);
}else{
//如果查询无果，则返回result=1
echo "[{\"result\":\"1\"}]";
}
}
?><?php //配置文件 - BY TANKING $host="localhost"; $username="root"; $password="root"; $db="test"; $tb="datalist"; ?>
##Database name: test
Fields: id, title, url
Field analysis:
id - self-increment ID
title - title
url - page link
The above is the entire content of this article, I hope it will be helpful to everyone Learning will be helpful. For more related content, please pay attention to the PHP Chinese website!
Related recommendations:
About the operations of extend, mixins, extends, components, install in vueInstallation of PHP And an introduction to integrating with apacheThe above is the detailed content of jQuery+AJAX+PHP+MySQL develops search function without jump or refresh. 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
PHP and Python: Comparing Two Popular Programming Languages
Apr 14, 2025 am 12:13 AM
PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.
PHP's Purpose: Building Dynamic Websites
Apr 15, 2025 am 12:18 AM
PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.
PHP in Action: Real-World Examples and Applications
Apr 14, 2025 am 12:19 AM
PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.
The Enduring Relevance of PHP: Is It Still Alive?
Apr 14, 2025 am 12:12 AM
PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.
PHP and Python: Different Paradigms Explained
Apr 18, 2025 am 12:26 AM
PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.
PHP and Python: Code Examples and Comparison
Apr 15, 2025 am 12:07 AM
PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.
Why Use PHP? Advantages and Benefits Explained
Apr 16, 2025 am 12:16 AM
The core benefits of PHP include ease of learning, strong web development support, rich libraries and frameworks, high performance and scalability, cross-platform compatibility, and cost-effectiveness. 1) Easy to learn and use, suitable for beginners; 2) Good integration with web servers and supports multiple databases; 3) Have powerful frameworks such as Laravel; 4) High performance can be achieved through optimization; 5) Support multiple operating systems; 6) Open source to reduce development costs.
PHP: Handling Databases and Server-Side Logic
Apr 15, 2025 am 12:15 AM
PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.
