search
HomeBackend DevelopmentPHP Tutorialmysql设计,统计脚本执行的间隔时间。

我有一个RSS程序,想统计一下:是其他网站的服务器订阅了我的RSS,还是普通客户通过浏览器打开执行。
现在的思路是:统计每个IP地址的访问频率用以区分。如果是其他网站的服务器订阅了我的RSS,那么一定是用自动程序定时执行,每次执行间隔时间是一个定数,比如每60分钟,每90分钟访问一次。

$ip=$_SERVER['REMOTE_ADDR'];

这样的情况,怎样设计mysql数据库呢? 本次访问时间-上次访问时间;上次访问时间-前次访问时间;再前次访问时间-前次访问时间(应该还须考虑一个每次脚本打开完成时间的误差可能正负几秒)... 这样的情况统计5次,大概可以确定该IP是自动程序,下次无需再统计。


回复讨论(解决方案)

两个字段:ip, time(unix时间戳)
判定条件:对于同一ip  (max(time) - min(time)) / count(*) = avg(time) - min(time)
算法依据:等差数列的性质

其实你还可以判断User-Agent信息。

两个字段:ip, time(unix时间戳)
判定条件:对于同一ip  (max(time) - min(time)) / count(*) = avg(time) - min(time)
算法依据:等差数列的性质



2个自段,可行吗?能不能给一段代码吗?

我水平不高,初想要5个字段,“ip;上次访问时间(本次访问时间-上次访问时间,用以计算);2次访问时间差;平均访问时间差;is_sever(默认值为0,是服务器的话升级为1,然后下次同样IP访问,就不需要再计算了)”

确定是server的,应该放在另一个表(例serverlist)中记录。
首先,版主讲的是每一次有访问且未确定是否服务器,都将ip与访问时间写入一个表(例accesslog)。每次写入后,判断是否服务器访问。(通常要几次才可以确定)
如果是,在serverlist插入一条记录,并把accesslog对应ip的记录删除。
当这个服务器再访问时,先判断serverlist有没有这个ip,如果有,则不写入accesslog。

另外,可以用user-agent来判断是否server访问。

什么是服务器访问呢?
什么服务器会订阅你的 rss ?
或是说什么网站会把你的 rss 存储于自己的数据库中?

另外,可以用user-agent来判断是否server访问。


什么是服务器访问呢?
什么服务器会订阅你的 rss ?
或是说什么网站会把你的 rss 存储于自己的数据库中?





什么是服务器访问呢?  说白了就是别人用自动程序抓取我的RSS,而不是浏览器或者RSS阅读器打开。
什么服务器会订阅你的 rss ?  或是说什么网站会把你的 rss 存储于自己的数据库中?

后两个问题我不再乎,我只想统计有多少不同IP的自动程序来抓取我网站的RSS信息。user-agent可以通过CURL之类的模仿,但是自动程序的唯一通性就是??99%都会通过cron程序,定时访问抓取,所以我想做个程序,通过分析不同IP的每次间隔访问时间,来分辨是否自动程序?当然最好不要用log,用数据库的话方便管理以及数据分析。

谢谢。


怎么说?到底什么用什么方法?2个字段可以吗?

所以说 2 个字段就可以满足记流水账的需要了
至于分析的结果是否也保存在同一个表中,那是由你决定的。如果是,当然还需要增加些字段

所以说 2 个字段就可以满足记流水账的需要了
至于分析的结果是否也保存在同一个表中,那是由你决定的。如果是,当然还需要增加些字段



当然不是流水账?问题是认真的。思路也说明白了,只是自己写代码信心不大,而且数据库怎么样设计最合理?大虾给个建议。

登记访问信息,当然是流水账
只需 insert 即可,分析计算一般也只需一条 update
弄的好的话,还可以用 view

如果你不把登记当做流水账则需先 select 定位,然后 update 修改
最后再分析计算

登记访问信息,当然是流水账
只需 insert 即可,分析计算一般也只需一条 update
弄的好的话,还可以用 view

如果你不把登记当做流水账则需先 select 定位,然后 update 修改
最后再分析计算


术语太专业了,能不能分享一下数据库结构,已经相关的insert,update和select的代码?谢谢.

结贴了。想的差不多了。

Statement
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
PHP's Purpose: Building Dynamic WebsitesPHP's Purpose: Building Dynamic WebsitesApr 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: Handling Databases and Server-Side LogicPHP: Handling Databases and Server-Side LogicApr 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.

How do you prevent SQL Injection in PHP? (Prepared statements, PDO)How do you prevent SQL Injection in PHP? (Prepared statements, PDO)Apr 15, 2025 am 12:15 AM

Using preprocessing statements and PDO in PHP can effectively prevent SQL injection attacks. 1) Use PDO to connect to the database and set the error mode. 2) Create preprocessing statements through the prepare method and pass data using placeholders and execute methods. 3) Process query results and ensure the security and performance of the code.

PHP and Python: Code Examples and ComparisonPHP and Python: Code Examples and ComparisonApr 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.

PHP in Action: Real-World Examples and ApplicationsPHP in Action: Real-World Examples and ApplicationsApr 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.

PHP: Creating Interactive Web Content with EasePHP: Creating Interactive Web Content with EaseApr 14, 2025 am 12:15 AM

PHP makes it easy to create interactive web content. 1) Dynamically generate content by embedding HTML and display it in real time based on user input or database data. 2) Process form submission and generate dynamic output to ensure that htmlspecialchars is used to prevent XSS. 3) Use MySQL to create a user registration system, and use password_hash and preprocessing statements to enhance security. Mastering these techniques will improve the efficiency of web development.

PHP and Python: Comparing Two Popular Programming LanguagesPHP and Python: Comparing Two Popular Programming LanguagesApr 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.

The Enduring Relevance of PHP: Is It Still Alive?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.

See all articles

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 agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
4 weeks agoBy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 agoBy尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
1 months agoBy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

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

DVWA

DVWA

Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.