Home php教程 php手册 php实现关键词自动加链接

php实现关键词自动加链接

Jun 13, 2016 am 10:47 AM
php Key words content add accomplish of Station group automatic Own connect Link

前段时间想给自己zencart站群的描述内容做下关键词连接,但是因为关键词太多,所以想写段程序自动执行这个功能,但是本人的没有认真学过php语言,所以参考网上很多资料,自己整理了一个函数
 
function zen_key_replace($str){
        $array_first = array(
        array('2012 New UGG Boots','link1.html'),
        array('black ugg boots','link2.html'),
        array('cheap ugg boots','link3.html'),
        array('cheapest ugg boots','link4.html'),
        array('discount ugg boots','link5.html'),
        array('girls ugg boots','link6.html'),
        array('grey ugg boots','link7.html'),
        array('ugg boots','link8.html')
        );
        $array_last = array();
        foreach($array_first as $key=>$value){
                $array_last[$key] = array('TFXS00'.$key, $value[0], ''.$value[0].'');
        }
    $count = count($array_last);
    for($i=0; $i             for($j=$count-1; $j>$i; $j--){
                    //如果后一个元素长度大于前一个则调换位置
                    if(strlen($array_last[$j][1]) > strlen($array_last[$j-1][1])){
                            $tmp = $array_last[$j];
                            $array_last[$j] = $array_last[$j-1];
                            $array_last[$j-1] = $tmp;
                    }
            }
    }
    $keys=$array_last;
    foreach($keys as $nkeys){
            $str= str_ireplace($nkeys[1], $nkeys[0], $str);
    }
    foreach($keys as $nkeys){
            $str= str_ireplace($nkeys[0], $nkeys[2], $str);
    }
    return $str;
}
 
示例: www.2cto.com
$str ="今天是2012年1月9号,ugg boots网站,seo就是搜索引擎优化了girls ugg boots,css+div,Photoshop,Flash,HTML,CSS,Dreamweaver,Fireworks,ASP,PHP,JSP,ASP.NET";
echo zen_key_replace(stripslashes($str));//在输出文章内容的地方调用这个函数$str为文章内容
?>
先是一个数组排序,关键词长度长的优先,因为如果相关的短关键词在前面,则长的关键词不会被替换到,如果ugg boot 先替换过了 那么ugg boot sale 就已经变成TFXS008 sale 就不会被成功替换
 
然后是一个替换,之所以先替换一遍成TFXS001 是为了在第二次替换的时候不会因为 类似ugg boots 这个常出现的关键词而进行多次替换。。类似2012 New UGG Boots 这种情况。。
 
以上,自己感觉这个功能还是太简单了点,还可以加上替换次数控制,把关键词及链接数据写入到数据库中,但是自己刚起步学习这些东西,很多地方不知道怎么做,会继续努力的。

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

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

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

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,

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

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.

What is Cross-Site Request Forgery (CSRF) and how do you implement CSRF protection in PHP? What is Cross-Site Request Forgery (CSRF) and how do you implement CSRF protection in PHP? Apr 07, 2025 am 12:02 AM

In PHP, you can effectively prevent CSRF attacks by using unpredictable tokens. Specific methods include: 1. Generate and embed CSRF tokens in the form; 2. Verify the validity of the token when processing the request.

See all articles