PHP开发之--安装composer

composer是一个很好用的工具,相似于iOS开发项目中所用的cocopods,因此就想着安装下,过程也很简单:php

一、切换到以下目录(在不少博客中都是这样写的,先安装,而后mv到/usr/local/bin目录下,其实能够直接安装),这样就能够全局使用json

cd /usr/local/bin

二、安装,输入以下命令:composer

curl -sS https://getcomposer.org/installer | php

这个时候会报错,以下:curl

bogon:bin xianniuyang$ curl -sS https://getcomposer.org/installer | php
All settings correct for using Composer
The installation directory "/usr/local/bin" is not writable

其实就是没有读写权限,输入以下命令,输入开机密码便可开放权限:工具

sudo chmod a+x /usr/local/bin

三、而后再次输入安装命令 curl -sS https://getcomposer.org/installer | php 便可安装,安装成功以下:ui

bogon:bin xianniuyang$ curl -sS -k https://getcomposer.org/installer | php
All settings correct for using Composer
Downloading...

Composer (version 1.9.0) successfully installed to: /usr/local/bin/composer.phar
Use it: php composer.phar

四、输入以下命令:url

mv composer.phar /usr/local/bin/composer

五、在本身的PHP项目中建立composer.json文件,能够建在文件夹里面;spa

六、执行以下命令:code

composer install

七、安装成功提示以下:orm

bogon:MFFC xianniuyang$ composer install
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 1 install, 0 updates, 0 removals
  - Installing monolog/monolog (1.0.2): Downloading (100%)         
Writing lock file
Generating autoload files

项目中以下图:

 

 参考了几篇博客,都不怎么完整,因此按照大神博客里面的步骤本身总结了下,仅作记录!

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