下面由composer使用教程栏目给大家介绍使用brew安装composer的方法，希望对需要的朋友有所帮助！
在终端查看php版本composer要求 php 5.3.2+ 版本以及一些php的配置
PHP 5.5.26 (cli) (built: Jul 6 2015 14:26:26)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2015 Zend Technologies
with Xdebug v2.2.7, Copyright (c) 2002-2015, by Derick Rethans在终端输入
brew install composer
出现问题：
/usr/local/Library/brew.sh: line 32: /usr/local/Library/ENV/scm/git: No such file or directory /usr/local/Library/brew.sh: line 32: /usr/local/Library/ENV/scm/git: No such file or directory [etc..] Error: update-report should not be called directly!
解决方法：点击查看
方法1：
brew upgrade 然后 brew update
方法2：
cd "$(brew --repository)" && git fetch && git reset --hard origin/master
解决问题后，使用brew install homebrew/php/composer安装
安装composer成功后，我想安装laravel/installer
composer global require "laravel/installer"
安装成功后，使用命令laravel, 但是会显示zsh: command not found: laravel
解决办法：
//我用的是oh-my-zsh, 在~/.zshrc添加如下 export PATH="/Applications/MAMP/bin/php/php5.5.26/bin:$PATH:$HOME/.composer/vendor/bin/"
