Table of Contents
PHP结合jQuery.autocomplete插件实现输入自动完成提示的功能
Home php教程 php手册 PHP结合jQuery.autocomplete插件实现输入自动完成提示的功能

PHP结合jQuery.autocomplete插件实现输入自动完成提示的功能

Jun 13, 2016 am 09:05 AM
php

PHP结合jQuery.autocomplete插件实现输入自动完成提示的功能

我们在很多项目中使用了搜索功能来帮助用户更快更准确的找到想要的信息。本文将介绍如何实现用户输入自动提示的功能,就像谷歌百度搜索引擎一样,当用户输入关键字时,输入框下方会有提示,将与关键字相关的信息展现出来供用户选择,提升了用户体验。

本文将使用jquery ui的autocomplete插件,结合后端PHP,数据源通过PHP读取mysql数据表的数据。

XHTML

首先将jquery库和相关ui插件,以及css导入。

 

代码如下:







 

jQuery ui 插件可以在官网上下载:
接着在body中写一个输入框:

 

代码如下:


 

jQuery

 

 代码如下:


$(function(){
$("#key").autocomplete({
source: "search.php",
minLength: 2
});
});

 

一看就明白,调用autocomplete插件,数据源来自search.php,当用户输入1个字符的时候就调用数据源。autocomplte插件提供了几个可配置的参数:
disabled:是否在页面加载后不可用,默认为false,这个没必要设置成true,没有多大意义。
appendTo:输入时下拉的提示框追加元素,默认为"body"。
autoFocus:默认为false,当设置成true时,下拉提示框第一个将会是被选中的状态。
delay:加载数据时的延迟时间,默认为300,单位毫秒。
minLength:输入多少个字符时就会出现下拉提示,默认为1。
position:定义下拉提示框的位置。
source:定义数据源,数据源必须是json形式的,本例是通过请求search.php获取的数据源。
autocomplete还提供了许多事件和方法,详情请查看其官网:

PHP

调用了autocomplete插件后,还并没有提示效果,别着急,因为需要调用数据源。
首先我们需要一张表,并要往表中添加适量数据,表的结构如下:

?

1

2

3

4

5

CREATE TABLE `art` (

`id` int(11) NOT NULL auto_increment,

`title` varchar(100) NOT NULL,

PRIMARY KEY (`id`)

) ENGINE=MyISAM DEFAULT CHARSET=utf8 ;


请自行建表,并往表art中添加数据。

search.php实现了连接Mysql数据库,并根据前端用户的输入,查询并获取数据表中相匹配的内容,然后以JSON形式输出。

?

1

2

3

4

5

6

7

8

9

10

11

12

include_once("connect.php"); //连接数据库

 

$q = strtolower($_GET["term"]); //获取用户输入的内容

$query=mysql_query("select * from art where title like '$q%' limit 0,10");

//查询数据库,并将结果集组成数组

while ($row=mysql_fetch_array($query)) {

$result[] = array(

'id' => $row['id'],

'label' => $row['title']

);

}

echo json_encode($result); //输出JSON数据

最后输出的JSON数据格式为:

 

代码如下:


[{"id":"3","title":"\u4f7f\u7528CSS\u548cjQuery\u5236\u4f5c\u6f02\u4eae\u7684\u4e0b
\u62c9\u9009\u9879\u83dc\u5355"},
{"id":"4","title":"\u4f7f\u7528jQuery\u548cCSS\u63a7\u5236\u9875\u9762\u6253\u5370
\u533a\u57df"}]

 

这时,再测试下输入,是不是看到你要的效果了呢?
最后,值得一提的是,autocomplete插件在firefox上有一个输入BUG,输入后并不能提示,需要向前空格再退格才有提示。网上有很多同学给出了解决方案,但是目前最新的autocomplete插件代码貌视进行了重构,我的解决方法是,在133行中加入如下代码:

?

1

2

3

4

.bind("input.autocomplete",function(){

//修复FF不支持中文bug

self.search(self.item);

});

以上所述就是本文的全部内容了,希望大家能够喜欢。

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
1 months ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

How To Set Up Visual Studio Code (VS Code) for PHP Development How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

How do you parse and process HTML/XML in PHP? How do you parse and process HTML/XML in PHP? Feb 07, 2025 am 11:57 AM

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

7 PHP Functions I Regret I Didn't Know Before 7 PHP Functions I Regret I Didn't Know Before Nov 13, 2024 am 09:42 AM

If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op

Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Apr 05, 2025 am 12:04 AM

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

PHP Program to Count Vowels in a String PHP Program to Count Vowels in a String Feb 07, 2025 pm 12:12 PM

A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

Explain late static binding in PHP (static::). Explain late static binding in PHP (static::). Apr 03, 2025 am 12:04 AM

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases? What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases? Apr 03, 2025 am 12:03 AM

What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.

See all articles