PHP project in store MVC framework Summary (1), MVC framework _php Tutorial

A summary of the store MVC framework in the PHP project (1), the MVC framework

1 . Division of Code Structure:

current directory structure:/ site root /application/ application Catalog    model/ model catalog    View/ View directory        back/ backend        front/         test    PlatformController/ Controller directory        / Backstage        front/ foreground        test/ test Platform /framework/ Framework Catalog    mysqldb. class . PHP database Operations Class DAO    Model. class . PHP base Model class /index.php portal file

2. Request Home

2.1 Request Home Parameter instance (Request Localhost/index.php?p=front&c=shop&a=index)

P=front  // backstage or foreground parameters have back and front c=index   // Controller, here request Home Controller a= Shop   // action, here homepage Shop Action

2.2 First Unified request code

 
  PHP// First Load frame class './framework/framework.class.php'; // Run the project Framework::run ();

2.3 Framework Class Code

/**/class  Framework {    /* * *     Run entry     for Project Framework class *    /publicstatic  function run () {        self::_ Initpathconst (); // Initializing Path Constants        Self::_initconfig (); // Load Configuration        Self::_initdispatchparam (); // Initializing distribution parameters        Self::_initplatformpathconst (); // initializing platform-dependent path constants        Self::_initautoload (); // registering the Auto-load method        Self::_dispatch (); // Request Distribution     }}

2.3.1 Initializing Path constants

/** * Initialize Path constants*/    Private Staticfunction _initpathconst () {//determine the path constants used in the projectDefine'Root_path', GETCWD ().'/');//the root directory of the projectDefine ('App_path', Root_path.'application/');//application DirectoryDefine'Con_path', App_path.'controller/');//Controller DirectoryDefine'Mod_path', App_path.'model/');//Model CatalogDefine'Vie_path', App_path.'view/');//View-level catalogsDefine'Cfg_path', App_path.'config/');//Configuration file DirectoryDefine ('Frw_path', Root_path.'framework/');//Framework CatalogDefine'Tol_path', Frw_path.'tool/');//Tools CatalogDefine ('Pub_path', Root_path.'public/');//Public Resources DirectoryDefine'Upd_path', Pub_path.'upload_image/');//Upload a picture catalog}

2.3.2 Loading configuration files

Private Static function _initconfig () {        // load the load profile and save the value of the configuration item with the $CONFIG, global variable.         $GLOBALS ['config'application.config.php ' ;    }

2.3.3 Initialization of distribution parameters

/** * Determine p,c,a parameters, distribution parameters, (routing parameters)*/    Private Staticfunction _initdispatchparam () {//Get platform Parameters$GLOBALS ['P'] = $p = Isset ($_get['P']) ? $_get['P']: $GLOBALS ['Config']['app']['Default_platform'];//P,platform//get controller class parameters$GLOBALS ['C'] = Isset ($_get['C']) ? $_get['C']: $GLOBALS ['Config'[$p] ['Default_controller'];//C,controller//Get Action Parameters$GLOBALS ['a'] = Isset ($_get['a']) ? $_get['a']: $GLOBALS ['Config'[$p] ['default_action'];//a,action}

The above code is used in the initial load configuration file, initialize the default request, when you directly request: localhost/index.php, no parameters, load the system default parameters

2.3.4 initialization of platform-dependent path constants

/* *     Initialize the current platform-dependent path Constants     * This is used to judge P, to find out exactly     which control */    privatestatic function _initplatformpathconst () {        // path constant associated with the current platform        define (' Cur_con_path ', Con_path. $GLOBALS ['P'/'); // Controller directory        for the current platform Define ('cur_vie_path', Vie_path. $GLOBALS ['P' ' / '); // View-level directory for the current platform    }

2.3.4 Registration Automatic Loading method

Private Staticfunction _initautoload () {//register for automatic loadingSpl_autoload_register (Array (__class__,'Selfautoload')); }'Selfautoload'methods are as follows Public Staticfunction Selfautoload ($class _name) {//The class that can be determined in the framework is first judged by whether it is a framework core class$class _file =Array ('Model'= = Frw_path.'Model.class.php',            'MySQLdb'= = Frw_path.'MySQLDB.class.php',            'Controller'= = Frw_path.'Controller.class.php',            'sessiondb'= = Tol_path.'SessionDB.class.php',            'Captcha'= = Tol_path.'Captcha.class.php',            'Upload'= = Tol_path.'Upload.class.php',            'Image'= = Tol_path.'Image.class.php',            'Page'= = Tol_path.'Page.class.php',        ); if(Isset ($class _file[$class _name])) {//is the core classrequire $class _file[$class _name]; }            //is a model classElseIf (substr ($class _name,-5) =='Model') {            //Model ClassRequire Mod_path. $class _name.'. class.php'; }        //is the controller classElseIf (substr ($class _name,-Ten) =='Controller') {            //Controller ClassRequire Cur_con_path. $class _name.'. class.php'; }    }

2.3.4 Request Distribution

/* *     * Request Distribution     * Send the request to one of the controller's     actions complete */     privatestatic  Function _ Dispatch () {        // Instantiate the controller class, and invoke the corresponding action method         //Ucfirst () The function converts the first character in a string to uppercase.         $controller _name = Ucfirst ($GLOBALS ['C'Controller '; // match match. Controller        // Loader class        new $controller _name;   Variable class name         // Call action method        $action _name = $GLOBALS ['A  'Action';        $controller, $action _name (); // variable method    }

2.3.5 When we request localhost/index.php, the equivalent of a request Localhost/index.php?p=front&c=shop&a=index is initialized

Shopcontroller controller under Application\controller\front, request action is indexaction

The Indexaction code is as follows:

 Public function Indexaction () {        // get classified data        new  Catmodel;         = $model _cat->getnestedlist ();         // loading front page templates        ' index.html ' ;    }

It should be stated that:

1, Shopcontroller Inheritance and Platform controller Platformcontroller, platform controller inherits from the base controller class: Controller

The relationship is as follows:

2, in determining good MVC, control action, the next step is to implement the model

   New Catmodel;   --"Catmodel class     = $model _cat->getnestedlist ();  --"Get all front desk categories

3, in the basic model, encapsulates all the basic operational database methods, wherein the Getnestedlist method is as follows

/* *     * Get nested categorical list data      */public      function getnestedlist ($p _id=0 ) {        // get all classifications        $list = $this andgetList ();         // make nested data, recursively find        return $this-getnested ($list, $p _id);    }

4. The GetList method is as follows

/* *     * get list data      *       /Public Function getList ()        {"  SELECT * from ' php_category ';         return $this->_db->fetchall ($sql);    }

5. After the model is implemented, it is loaded into view

    // loading front page templates    ' index.html ';

2.3.6 Summary: Implement a function, first determine control, then implement model, and finally load the view

2.3.7 Front Page not elaborated

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