Composer笔记

Composer官网

• https://getcomposer.org/

获取全局配置

➜  ~ composer config -g -l
[repositories.packagist.org.type] composer
[repositories.packagist.org.url] https://repo.packagist.org
[process-timeout] 300
[use-include-path] false
...

更新项目依赖包

➜  ~ composer update -o

升级composer

$ composer self-update
Upgrading to version 2.3.5 (stable channel).

Use composer self-update --rollback to return to version 2.1.10

如需撤销本次升级，回滚到原来的版本。使用：

composer self-update --rollback

回滚到指定版本

# 回滚到1.*大版本
composer self-update --1

全局配置国内源镜像

# 阿里云镜像
composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/
# 腾讯云镜像
composer config -g repos.packagist composer https://mirrors.tencent.com/composer/

取消配置

composer config -g --unset repos.packagist

项目配置国内源镜像

仅修改当前工程配置，仅当前工程可使用该镜像地址

# 阿里云镜像
composer config repo.packagist composer https://mirrors.aliyun.com/composer/
# 腾讯云镜像
composer config repo.packagist composer https://mirrors.tencent.com/composer/

取消配置

composer config --unset repos.packagist

遇到问题？

1. 建议先将Composer版本升级到最新

composer self-update

2. 执行诊断命令

composer diagnose

3. 清除缓存

composer clear

4. 若项目之前已通过其他源安装，则需要更新 composer.lock 文件，执行命令

composer update --lock

指定PHP版本，以及依赖包指定PHP版本

• composer.json配置如下：

"config": {
"platform": {
"php": "7.4.33"
}
},

指定依赖包的版本安装

# 如：指定安装 不高于 9.6 的PHP单元测试（PHP 7.3 - 7.4 最高可用版本）
composer require --dev phpunit/phpunit ^9.6