MVC的composer

composer安装：

先创建一个composer.jsop文件

在文件内写入如下内容

{
    "name":"IMOOC PHP",
    "description":"PHP Framework",
    "type":"Framework",
    "keywords":[
         "PHP","PHP Framework"
    ],
    "require":{      

       "php":">=5.3.0",

        "filp/whoops":"*",
        "symfony/var-dumper":"*",
        "catfan/medoo":"*",
        "twig/twig":"*"
    },
    "repositories":{
    "packagist":{
        "type": "composer",
        "url": "https://packagist.phpcomposer.com"
    }
    }
}

安装后如果要加入composer小插件

在composer.jsop内写好插件名称后如“ "filp/whoops":"*",”需要更新一下composer

 

然后打开命令行，找到composer路径执行安装composer

  composer install


更新composer

  composer update


引用composer

include “vendor/autoload.php”;

应用composer

<?php
    //错误提示
    $whoops = new \Whoops\Run;
    //定以头部提示
    $errorTitle = "框架出错了";
    $option = new \Whoops\Handler\PrettyPageHandler;
    $option->setPageTitle($errorTitle);
    $whoops->pushHandler($option);
    $whoops->register();