解析基于MVC的轻量级PHP框架_PHP教程

<?php

// no direct access
defined( 'EXEC' ) or die( 'Restricted access' );

//load error class
require_once( PATH_CLASS.DS.'error.class.php'); //包含错误处理文件
//load base class
require_once( PATH_CLASS.DS.'base.class.php' ); //包含基类文件

//实例化基类
load=new Base();

//实列化请求类 用于获取GET或POST
//加截一个自己写的类的方法
//把自己写的类放在class 文件夹下面,文件名的格式为demo.class.php
//那么类名就为 class demo{}
//实便化的方式为demo=load->library(‘demo’);
//调用demo类的Get函数则为 demo->Get(‘参数’);

request=load->library('params');
//不同的目录用不同的URL方式
require_once( PATH_BASE.DS.'includes'.DS.'router.inc.php' );

?>
 

<?php

// no direct access
defined( 'EXEC' ) or die( 'Restricted access' );

class Base extends Error
{

var path_root ='';
var path_class ='';
var path_control ='';

/*/构造函数
*@parame path 应用路径
*return null
*/
public function Base()
{
this->path_root =PATH_ROOT;
this->path_class =PATH_CLASS;
this->path_control=PATH_BASE.DS.'controls';
}

//加载模型
//load model
function model(name)
{
include_once (this->path_model.DS.name.'.php');

model=null;
if(model==null)
{
model=new name();
}
return model;

}

//output page
/*
*@paramater name file name
*@paramater data replace
*
*/
function view(name,data)
{
Template=self::template(file);
Template->output(data);
unset(Template);
}

//create database connection
function database()
{
iclude_once (PATH_CLASS.DS.'db'.DS.'adodb.inc.php');
this->db = ADONewConnection();
this->db->createdatabase = true;
result = this->db->Connect(self::config('db_host') , self::config('db_user'), self::config('db_password'), self::config('db_database') );
if(!result)
{
die("Could not connect to the database.");
}else{
this->db->Execute("set names 'utf8'");
return this->db;
}
}

//create template
function template(file)
{
include_once (PATH_CLASS.DS.'template'.DS.'class.smarttemplate.php');
Template = new Smarttemplate(file)
Template->template_dir=PATH_BASE.self::config('template_dir');
Template->cache_dir =PATH_BASE.self::config('cache_dir');

return Template;
}

//import class
function library(className) 
{
if(empty(className))
{
return null;
exit();
}
else
{
require_once(PATH_CLASS.DS.className.'.class.php');
return new className();

}
}

//return config value
function config(parameter)
{
require_once(PATH_CONFIG.DS.'config.php');

return CONFIG::Ini()->parameter;

}

}


?>
 

<?php

class Model extends Base
{
var request;
var db;
function Model()
{
this->request=this->library('params');
}

//create database connection
function database()
{
if(this->db!=null)
{
return this->db;
exit;
}
include_once (PATH_CLASS.DS.'db'.DS.'adodb.inc.php');
this->db = ADONewConnection();
this->db->createdatabase = true;
result = this->db->Connect(this->config('db_host') , this->config('db_user'), this->config('db_password'), this->config('db_database') );
if(!result)
{
die("Could not connect to the database.");
}else{
this->db->Execute("set names 'utf8'");
return this->db;
}
}

}

?>
 

跟据URL,指定到相应的控制器,跟据网站的URL表现形式编写
<?php
// no direct access
defined( 'EXEC' ) or die( 'Restricted access' );

//实例化类
load=new Base();

//实列化请求类 用于获取GET或POST
request=load->library('params');

//获取参数
option=@request->get('option');
task =@request->get('task');

//如果未设置文件
if(empty(option))
{
option=load->config('index_router');
}

include_once (PATH_BASE.DS.'controls'.DS.option.'.php');

Control=new option();

if(empty(task))
{
Control->index();
}
else
{
Control->task();
}


?>