This article introduces PHP to generate a unique RequestID class, using the session_create_id() and uniqid() methods to ensure uniqueness and provide Complete code and demonstration for everyone to learn and use.
Current system designs generally use distributed systems. A request may call several microservices for processing, and finally return the result. When there is a problem with a request, it is difficult for us to track which microservice has the problem.
When each request accesses the server, we can add a unique identifier (RequestID) to this access, at the beginning of the request, during the request process, and at the end of the request , write the key data of this request process into the log (such as the parameters during the access, the methods passed, the microservices, the data returned at the end, etc.), which can be used for reference when there is a problem with the access to facilitate tracking of the problem.
For example, a request needs to go through several microservices before returning the output
Request->A->B->C-A->Output
If there is no output during the access process, or there is an error in the output, we can find the logs corresponding to A, B, and C based on the RequestID to check which service has the problem.
The code is as follows:
RequestID.class.php
<?php/** * PHP生成唯一RequestID类 * Date: 2018-04-10 * Author: fdipzone * Version: 1.0 * * Description: * PHP实现生成唯一RequestID类,使用session_create_id()与uniqid()方法实现,保证唯一性。 * * Func: * public generate 生成唯一请求id * private format 格式化请求id */class RequestID{ // class start /** * 生成唯一请求id * @return String */ public static function generate(){ // 使用session_create_id()方法创建前缀 $prefix = session_create_id(date('YmdHis')); // 使用uniqid()方法创建唯一id $request_id = strtoupper(md5(uniqid($prefix, true))); // 格式化请求id return self::format($request_id); } /** * 格式化请求id * @param String $request_id 请求id * @param Array $format 格式 * @return String */ private static function format($request_id, $format='8,4,4,4,12'){ $tmp = array(); $offset = 0; $cut = explode(',', $format); // 根据设定格式化 if($cut){ foreach($cut as $v){ $tmp[] = substr($request_id, $offset, $v); $offset += $v; } } // 加入剩余部分 if($offset<strlen($request_id)){ $tmp[] = substr($request_id, $offset); } return implode('-', $tmp); } } // class end?>
demo:
<?phprequire 'RequestID.class.php';// 生成10个请求idfor($i=0; $i<10; $i++){ echo RequestID::generate().PHP_EOL; }?>
Output:
16532925-4502-CDAD-23A2-463FC7B5803A500B77AD-CD24-0DDA-9E6E-2FDF2DD7CA94813143D0-958F-9F56-E04F-679598594452E5EE1B0B-E0D6-3E60-D831-462C5A262FCE79E714B5-A37F-4B5E-4EDE-83E18391EBF9 E1C440AB-FC2C-AC74-E79A-016FD59D9651 AE483861-1040-BE8D-E523-D7638D0F0D35BBD7A03A-36C9-24B7-C453-FB1DDD6E201EBF62C3E6-9C5F-22CB-668D-381863B35268 E97E1F44-F048-962A-5BF7-1113727551B1
Note that the session_create_id method requires php7.1 or above before it can be used.
For the session_create_id method, please refer to the official website description:
http://php.net/manual/zh/function.session-create-id.php
This article explains how PHP generates a unique RequestID class. For more information, please pay attention to the PHP Chinese website.
Related recommendations:
php json_encode does not support the solution to object private attributes
js basic data types and conversion operators
The above is the detailed content of PHP generates relevant content of unique RequestID class. For more information, please follow other related articles on the PHP Chinese website!

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

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 originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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

SublimeText3 English version
Recommended: Win version, supports code prompts!

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

SublimeText3 Mac version
God-level code editing software (SublimeText3)

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

Atom editor mac version download
The most popular open source editor