获取配置

Config.class.php

<?php
/**
 * Description  replace from your description
 * Created by   Jetbrains PhpStorm.
 * User:        Jake <singviy@gmail.com>
 * Created:     2016/6/7  9:39
 */


class Config
{

    private static $configs = array();

    public function __construct()
    {
        //echo "this is config loader";
    }


    public static function loadGroup($group)
    {
        return self::$configs[$group];
    }
    
    /**
     * loadKey获取配置，
     * @author Jake
     * @param $key
     * @param null $group
     * @return bool
     */
    public static function loadKey($key,$group = null)
    {
        if($group == null){
            if(!self::$configs)
                return false;
            foreach (self::$configs as $_group => $value){
                if(isset(self::$configs[$_group][$key]))
                    return self::$configs[$_group][$key];
            }
            return false;
        }elseif (isset(self::$configs[$group][$key])){
            return self::$configs[$group][$key];
        }else
            return false;
    }

    public static function  loadAll()
    {
        return self::$configs;
    }

    public function registerConfigFile($file){
        if(is_array($file)){

        }else
        {
            $config = require_once $file;
            self::$configs[$config[0]] = $config[1];
        }
    }


}

db.php

<?php
/**
 * Description  replace from your description
 * Created by   Jetbrains PhpStorm.
 * User:        Jake <singviy@gmail.com>
 * Created:     2016/6/7  9:35
 */


/**
 * 返回一个两元数组，第一个元素是分组的名字，第二个是配置的值
 */
return array('db',array(
    'type'      => 'mysql',
    'host'      => 'localhost',
    'port'      => 3306,
    'name'      => 'test',
    'user'      => 'root',
    'password'  => 'root'
));

test.php

<?php
  $configLoader = new Config();
   $configLoader->registerConfigFile('配置文件路径'); //配置文件路径
   
   //获取分组下的配置
  $grp =  Config::loadGroup('db');
   
   //查找键
   $name = Config:loadKey('name','group');
   
   //获取所有
   $allConfig = Config:loadAll();