Composer 常用功能

(一)如何添加包: 

如果想要添加CI框架,composer.json文件可以写成: 

{
	"require" :{
	  "monolog/monolog": "1.0.*",   // monolog库
	  "codeigniter/framework": "3.0rc3"  // CI 包 
	}

}

(二) Composer 中的自动加载 

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

// 命名空间 
namespace App\Bll;
class UserBll {
	public static function  test(){
		echo  'thisi is auto_loader ' ; 
	}
}

	namespace App\Controller;
	use  App\Bll\UserBll;
	require '../../../vendor/autoload.php';  // 一定要加上此文件才可以 
	UserBll::test();

 namespace PaymentGateway;  
class Payment {  
    public function process()  
    {  
        echo 'hello world ' ;  
    }  
}  

  "autoload": {
        "classmap":["lib"]
    }
	

namespace Paf\App\Controller;
use Paf\App\Bll\UserBll;
use Payment\Payment;
require '../../../vendor/autoload.php';
UserBll::test();
Payment::process();

require '../../../vendor/autoload.php';
\Paf\App\Bll\UserBll::test();
\Payment\Payment::process();

(三)  创建一个自己的 Composer/Packagist 包

(1)  在gitlub上托管一个git仓库

(2) 在根目录中添加 composer.json 文件,文件内容如 

 {
    "name": "louis/wlt-miaomu",
    "description": "In order to develop the miaomu cite ",
    "license": "MIT",
    "authors": [
        {
            "name": "Louis",
            "email": "wang**@163.com"
        }
    ],
    "minimum-stability": "dev",
    "require": {
        "php": ">=5.3.0"
    },
    "autoload": {
        "psr-4": {
            "Ford\\Fusion\\": "src/Ford/Fusion",
            "Ford\\Focus\\": "src/Ford/Focus",
            "Ford\\Fiesta\\": "src/Ford/Fiesta"
        }
    }｝

 (3) 在 https://packagist.org中注册账号,这里可以使用gitlub的账号使用

参考文献
http://my.oschina.net/houlive/blog/206832 ; 

Composer 常用功能

原文：http://blog.csdn.net/wanglitaow/article/details/44568693