PHP学习笔记,自己动手写个MVC的框架 -- base所有代码

<?php

/**

名称:基础类

作用:引用参数处理类,加载基础配置,

作者:[email protected]

创建日期:2013-07-31

**/

require_once(ROOT_PATH.'/system/lib/configs/sys_path.config.php');

class base{

    public static $sys;

    private function __construct(){

        return false;

    }

    public static function getInstance(){

        if(!(self::$sys instanceof self)){

            self::$sys = new self();

        }

        return self::$sys;

    }

    //初始化方法

    public static function init(){

        self::sys_class('model');

        self::sys_class('ctrl');

        $args = self::__explan_arg();

        $ctrl = self::__load_ctrl($args['m'],$args['c']);

        call_user_func(array($ctrl,$args['a']));

    }

    //加载系统类

    public static function sys_class($classname){

        $file = SYS_CLASS_DIR.$classname.'.class.php';

        if(is_file($file)){

            include_once($file);

        }else{

            exit('class file not found!FILE'.$file);

        }

    }

    //加载数据模型

    public function load_model($modelname){

        $file = MODEL_DIR.$modelname.".model.class.php";

        if(is_file($file)){

            include_once $file;

            $classname = $modelname.'_model';

            return $model = new $classname;

        }else{

            exit('model file not found!');

        }

    }

    private function __clone(){

        //防止单例类被复制

    }

    //加载系统函数

    public static function sys_fun(){



    }

    //加载配置文件

    public static function load_config($dir,$name,$key='default'){

        $configs = array();

        $file = $dir.$name.'.config.php';

        if(is_file($file)){

            $configs = include_once($file);

            if(isset($configs[$key])){

                return $configs[$key];

            }else{

                exit("config wrong,not found!");

            }

        }else{

            //exit("config file not exist!FILE:".$file);

        }

    }

    //加载系统的配置文件

    public static function sys_config($name,$key='default'){

        $file = SYS_CONFIG_DIR;

        return self::load_config($file,$name,$key);

    }



    private static function __load_class($dir,$name){



    }

    //加载控制器

    //$m是模块名称

    //$c是控制器名称

    private static function __load_ctrl($m,$c){

        $c_dir = MODULES_DIR.$m."/";

        if(is_dir($c_dir)){

            include($c_dir.$c.'.php');

            $classname = 'c_'.$c;

            return new $classname;

        }else{

            exit("modules dir not exist!");

        }

    }

    //解析URL中的参数

    private static function __explan_arg(){

        $default_arg = self::sys_config('default_arg');

        $args['m'] = isset($_GET['m'])?$_GET['m']:$default_arg['m'];

        $args['c'] = isset($_GET['c'])?$_GET['c']:$default_arg['c'];

        $args['a'] = isset($_GET['a'])?$_GET['a']:$default_arg['a'];

        return $args;

    }

}