PHP bytecode caching and built-in server in detail
1). Starting from PHP5.0, there is a built-in bytecode caching function called Zend OPcache. Because PHP is an interpreted language, when the PHP interpreter executes a PHP script, it will parse the PHP script code, generate a series of Zend opcodes, and then execute the bytecode. This is the case for every HTTP request, which consumes a lot of resources and uses bytecodes. Section code caching can cache pre-compiled bytecode, reducing response time and reducing pressure on system resources.
Enable Zend OPcache
By default, Zend OPcache is not started. If you compile PHP yourself, the command must include the following options when executing:
--enable-opcache
After compiling PHP, you must also specify the extension path of Zend OPcache in the php.ini file, as follows:
zend_extension=/path/to/opcache.so
After PHP is compiled successfully, the file path of the Zend OPcache extension will be displayed immediately. You can use the following command to find the path of this PHP extension
php-config --extension-dir
Then use the following code to confirm that the extension is running normally
<?php phpinfo();
Configure Zend OPcache
Recommended configuration
opcache.validate_timestamps = 1 //在生产环境中设为'0' opcache.revalidate_freq = 0 opcache.memory_comsumption = 64 opcache.interned_strings_buffer = 16 opcache.max_accelerated_files = 4000 opcache.fast_shutdown = 1
You can visit the PHP official website to view detailed settings.
Use Zend OPcache
1). The production environment can set opcache.validate_timestamps=0. In the development environment, it needs to be set to 1
Built-in HTTP server
1). Start php -S localhost:4000 -c app/config/php.ini
2 ). .htaccess files are not supported. means controller mode is not supported. The front-end controller is used to forward all HTTP requests, which needs to be implemented through .htaccess files or rewrite rules.
3). You can use router scripts to achieve the above functions. However, only a small number of URL rewriting rules are supported php -S localhost:8000 router.php
4). Determine which server is used:
<?php if (php_sapi_name() === 'cli-server') { //php内置服务器 } else { // 其他Web服务器 }
Special Series
PHP The directory address of the special series: github.com/xx19941215/…
The PHP special series is expected to be about twenty articles, mainly summarizing the basic knowledge that is easily overlooked in our daily PHP development and the standards, deployment, and Some practical suggestions for optimization, as well as in-depth research on the characteristics of the Javascript language.
Related recommendations:
About the use of PHP’s built-in server
The above is the detailed content of PHP bytecode caching and built-in server in detail. 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 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

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

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

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,

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

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

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 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.
