使用composer来安装php的相关框架，不需要事先准备composer.json以及conmposer.lock以及composer.phar等文件；
直接在项目根目录下是使用composer require frameworkname即可
使用composer require frameworkname命令执行以下动作：
(1)首先在项目根目录下生成composer.json文件
(2)会在项目更目录下生成框架的vendor目录，vendor目录即为框架，vendor目录会包含一个autoload.php文件用于加载框架；包含一个composer目录定义各种加载器
(3)最后生成composer.lock文件
例如在一个空目录下安装beanbun
生成的文件如下所示：
composer.json
{ ???"require": { ???????"kiddyu/beanbun": "^1.0" ???}}autoload.php
<?php// autoload.php @generated by Composerrequire_once __DIR__ . ‘/composer/autoload_real.php‘;return ComposerAutoloaderInitf0360927d4c8cd5f4c7318db461c5f92::getLoader();
composer.lock
{ ???"_readme": [ ???????"This file locks the dependencies of your project to a known state", ???????"Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file", ???????"This file is @generated automatically" ???], ???"content-hash": "f39f11ea038520d38d9236d063973569", ???"packages": [ ???????{ ???????????"name": "guzzlehttp/guzzle", ???????????"version": "6.3.3", ???????????"source": { ???????????????"type": "git", ???????????????"url": "https://github.com/guzzle/guzzle.git", ???????????????"reference": "407b0cb880ace85c9b63c5f9551db498cb2d50ba" ???????????}, ???????????"dist": { ???????????????"type": "zip", ???????????????"url": "https://api.github.com/repos/guzzle/guzzle/zipball/407b0cb880ace85c9b63c5f9551db498cb2d50ba", ???????????????"reference": "407b0cb880ace85c9b63c5f9551db498cb2d50ba", ???????????????"shasum": "" ???????????}, ???????????"require": { ???????????????"guzzlehttp/promises": "^1.0", ???????????????"guzzlehttp/psr7": "^1.4", ???????????????"php": ">=5.5" ???????????}, ???????????"require-dev": { ???????????????"ext-curl": "*", ???????????????"phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.4 || ^7.0", ???????????????"psr/log": "^1.0" ???????????}, ???????????"suggest": { ???????????????"psr/log": "Required for using the Log middleware" ???????????}, ???????????"type": "library", ???????????"extra": { ???????????????"branch-alias": { ???????????????????"dev-master": "6.3-dev" ???????????????} ???????????}, ???????????"autoload": { ???????????????"files": [ ???????????????????"src/functions_include.php" ???????????????], ???????????????"psr-4": { ???????????????????"GuzzleHttp\\": "src/" ???????????????} ???????????}, ???????????"notification-url": "https://packagist.org/downloads/", ???????????"license": [ ???????????????"MIT" ???????????], ???????????"authors": [ ???????????????{ ???????????????????"name": "Michael Dowling", ???????????????????"email": "mtdowling@gmail.com", ???????????????????"homepage": "https://github.com/mtdowling" ???????????????} ???????????], ???????????"description": "Guzzle is a PHP HTTP client library", ???????????"homepage": "http://guzzlephp.org/", ???????????"keywords": [ ???????????????"client", ???????????????"curl", ???????????????"framework", ???????????????"http", ???????????????"http client", ???????????????"rest", ???????????????"web service" ???????????], ???????????"time": "2018-04-22T15:46:56+00:00" ???????}, ???????{ ???????????"name": "guzzlehttp/promises", ???????????"version": "v1.3.1", ???????????"source": { ???????????????"type": "git", ???????????????"url": "https://github.com/guzzle/promises.git", ???????????????"reference": "a59da6cf61d80060647ff4d3eb2c03a2bc694646" ???????????}, ???????????"dist": { ???????????????"type": "zip", ???????????????"url": "https://api.github.com/repos/guzzle/promises/zipball/a59da6cf61d80060647ff4d3eb2c03a2bc694646", ???????????????"reference": "a59da6cf61d80060647ff4d3eb2c03a2bc694646", ???????????????"shasum": "" ???????????}, ???????????"require": { ???????????????"php": ">=5.5.0" ???????????}, ???????????"require-dev": { ???????????????"phpunit/phpunit": "^4.0" ???????????}, ???????????"type": "library", ???????????"extra": { ???????????????"branch-alias": { ???????????????????"dev-master": "1.4-dev" ???????????????} ???????????}, ???????????"autoload": { ???????????????"psr-4": { ???????????????????"GuzzleHttp\\Promise\\": "src/" ???????????????}, ???????????????"files": [ ???????????????????"src/functions_include.php" ???????????????] ???????????}, ???????????"notification-url": "https://packagist.org/downloads/", ???????????"license": [ ???????????????"MIT" ???????????], ???????????"authors": [ ???????????????{ ???????????????????"name": "Michael Dowling", ???????????????????"email": "mtdowling@gmail.com", ???????????????????"homepage": "https://github.com/mtdowling" ???????????????} ???????????], ???????????"description": "Guzzle promises library", ???????????"keywords": [ ???????????????"promise" ???????????], ???????????"time": "2016-12-20T10:07:11+00:00" ???????}, ???????{ ???????????"name": "guzzlehttp/psr7", ???????????"version": "1.4.2", ???????????"source": { ???????????????"type": "git", ???????????????"url": "https://github.com/guzzle/psr7.git", ???????????????"reference": "f5b8a8512e2b58b0071a7280e39f14f72e05d87c" ???????????}, ???????????"dist": { ???????????????"type": "zip", ???????????????"url": "https://api.github.com/repos/guzzle/psr7/zipball/f5b8a8512e2b58b0071a7280e39f14f72e05d87c", ???????????????"reference": "f5b8a8512e2b58b0071a7280e39f14f72e05d87c", ???????????????"shasum": "" ???????????}, ???????????"require": { ???????????????"php": ">=5.4.0", ???????????????"psr/http-message": "~1.0" ???????????}, ???????????"provide": { ???????????????"psr/http-message-implementation": "1.0" ???????????}, ???????????"require-dev": { ???????????????"phpunit/phpunit": "~4.0" ???????????}, ???????????"type": "library", ???????????"extra": { ???????????????"branch-alias": { ???????????????????"dev-master": "1.4-dev" ???????????????} ???????????}, ???????????"autoload": { ???????????????"psr-4": { ???????????????????"GuzzleHttp\\Psr7\\": "src/" ???????????????}, ???????????????"files": [ ???????????????????"src/functions_include.php" ???????????????] ???????????}, ???????????"notification-url": "https://packagist.org/downloads/", ???????????"license": [ ???????????????"MIT" ???????????], ???????????"authors": [ ???????????????{ ???????????????????"name": "Michael Dowling", ???????????????????"email": "mtdowling@gmail.com", ???????????????????"homepage": "https://github.com/mtdowling" ???????????????}, ???????????????{ ???????????????????"name": "Tobias Schultze", ???????????????????"homepage": "https://github.com/Tobion" ???????????????} ???????????], ???????????"description": "PSR-7 message implementation that also provides common utility methods", ???????????"keywords": [ ???????????????"http", ???????????????"message", ???????????????"request", ???????????????"response", ???????????????"stream", ???????????????"uri", ???????????????"url" ???????????], ???????????"time": "2017-03-20T17:10:46+00:00" ???????}, ???????{ ???????????"name": "kiddyu/beanbun", ???????????"version": "1.0.4", ???????????"source": { ???????????????"type": "git", ???????????????"url": "https://github.com/kiddyuchina/Beanbun.git", ???????????????"reference": "3b84c35de3470a3a2a44d47d201bdc3b7602e666" ???????????}, ???????????"dist": { ???????????????"type": "zip", ???????????????"url": "https://api.github.com/repos/kiddyuchina/Beanbun/zipball/3b84c35de3470a3a2a44d47d201bdc3b7602e666", ???????????????"reference": "3b84c35de3470a3a2a44d47d201bdc3b7602e666", ???????????????"shasum": "" ???????????}, ???????????"require": { ???????????????"guzzlehttp/guzzle": "^6.0", ???????????????"php": ">=5.5.0", ???????????????"workerman/workerman": "^3.3" ???????????}, ???????????"type": "application", ???????????"autoload": { ???????????????"psr-4": { ???????????????????"Beanbun\\": "src/" ???????????????} ???????????}, ???????????"notification-url": "https://packagist.org/downloads/", ???????????"license": [ ???????????????"MIT" ???????????], ???????????"authors": [ ???????????????{ ???????????????????"name": "Kidd Yu", ???????????????????"email": "58631254@qq.com" ???????????????} ???????????], ???????????"description": "Beanbun 是用 PHP 编写的多进程网络爬虫框架，具有良好的开放性、高可扩展性", ???????????"keywords": [ ???????????????"crawler", ???????????????"scraper", ???????????????"spider" ???????????], ???????????"time": "2017-06-11T17:13:59+00:00" ???????}, ???????{ ???????????"name": "psr/http-message", ???????????"version": "1.0.1", ???????????"source": { ???????????????"type": "git", ???????????????"url": "https://github.com/php-fig/http-message.git", ???????????????"reference": "f6561bf28d520154e4b0ec72be95418abe6d9363" ???????????}, ???????????"dist": { ???????????????"type": "zip", ???????????????"url": "https://api.github.com/repos/php-fig/http-message/zipball/f6561bf28d520154e4b0ec72be95418abe6d9363", ???????????????"reference": "f6561bf28d520154e4b0ec72be95418abe6d9363", ???????????????"shasum": "" ???????????}, ???????????"require": { ???????????????"php": ">=5.3.0" ???????????}, ???????????"type": "library", ???????????"extra": { ???????????????"branch-alias": { ???????????????????"dev-master": "1.0.x-dev" ???????????????} ???????????}, ???????????"autoload": { ???????????????"psr-4": { ???????????????????"Psr\\Http\\Message\\": "src/" ???????????????} ???????????}, ???????????"notification-url": "https://packagist.org/downloads/", ???????????"license": [ ???????????????"MIT" ???????????], ???????????"authors": [ ???????????????{ ???????????????????"name": "PHP-FIG", ???????????????????"homepage": "http://www.php-fig.org/" ???????????????} ???????????], ???????????"description": "Common interface for HTTP messages", ???????????"homepage": "https://github.com/php-fig/http-message", ???????????"keywords": [ ???????????????"http", ???????????????"http-message", ???????????????"psr", ???????????????"psr-7", ???????????????"request", ???????????????"response" ???????????], ???????????"time": "2016-08-06T14:39:51+00:00" ???????}, ???????{ ???????????"name": "workerman/workerman", ???????????"version": "v3.5.8", ???????????"source": { ???????????????"type": "git", ???????????????"url": "https://github.com/walkor/Workerman.git", ???????????????"reference": "cbc6e46deb9e1a82a5f628118c850ebeea7b2224" ???????????}, ???????????"dist": { ???????????????"type": "zip", ???????????????"url": "https://api.github.com/repos/walkor/Workerman/zipball/cbc6e46deb9e1a82a5f628118c850ebeea7b2224", ???????????????"reference": "cbc6e46deb9e1a82a5f628118c850ebeea7b2224", ???????????????"shasum": "" ???????????}, ???????????"require": { ???????????????"php": ">=5.3" ???????????}, ???????????"suggest": { ???????????????"ext-event": "For better performance. " ???????????}, ???????????"type": "library", ???????????"autoload": { ???????????????"psr-4": { ???????????????????"Workerman\\": "./" ???????????????} ???????????}, ???????????"notification-url": "https://packagist.org/downloads/", ???????????"license": [ ???????????????"MIT" ???????????], ???????????"authors": [ ???????????????{ ???????????????????"name": "walkor", ???????????????????"email": "walkor@workerman.net", ???????????????????"homepage": "http://www.workerman.net", ???????????????????"role": "Developer" ???????????????} ???????????], ???????????"description": "An asynchronous event driven PHP framework for easily building fast, scalable network applications.", ???????????"homepage": "http://www.workerman.net", ???????????"keywords": [ ???????????????"asynchronous", ???????????????"event-loop" ???????????], ???????????"time": "2018-05-23T05:36:47+00:00" ???????} ???], ???"packages-dev": [], ???"aliases": [], ???"minimum-stability": "stable", ???"stability-flags": [], ???"prefer-stable": false, ???"prefer-lowest": false, ???"platform": [], ???"platform-dev": []}使用composer安装php的相关框架
原文地址：https://www.cnblogs.com/liuzhiqaingxyz/p/9085018.html