1. Composer

PHP依赖管理工具

1.1. 下载 Composer

Download Composer

php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
php -r "if (hash_file('SHA384', 'composer-setup.php') === '55d6ead61b29c7bdee5cccfb50076874187bd9f21f65d8991d46ec5cc90518f447387fb9f76ebae1fbbacf329e583e30') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
php composer-setup.php --install-dir="/usr/local/bin/"
php -r "unlink('composer-setup.php');"

1.1.1. Xdebug 警告

如果安装了 Xdebug 会有下面的警告

You are running composer with xdebug enabled. This has a major impact on
runtime performance.

解决方法

~/.bash_profile 中加入

alias composer='php -n /usr/local/bin/composer.phar'

运行 source ~/.bash_profile

使用 composer 替换 composer.phar

1.2. 使用

查看版本

composer -v

查看所有命令

composer -l

不安装开发依赖

composer install --no-dev

1.3. Autoload

你可以在 composer.json 的 autoload 字段中增加自己的 autoloader。

{
    "autoload": {
        "psr-4": {"Acme\\": "src/"}
    }
}

添加 autoload 字段后，你应该再次运行 install 命令来生成 vendor/autoload.php 文件。

1.4. Questions

You are running composer with xdebug enabled. This has a major impact on runtime performance.
参考 https://segmentfault.com/a/1190000006835525

composer 不调用任何 php 配置文件

~/.bashrc 中添加

# Without php.ini
alias composer='php -n /usr/local/bin/composer.phar'

source ~/.bashrc

composer -v

Failed to decode response: zlib_decode(): data error Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubleshooting.md#degraded-mode for more info

composer self-update 后重新安装

Composer