B2Core: 300-line phpMVC architecture

B2Core: 300-line phpMVC architecture

B2Core is a lightweight php MVC framework. the 300-line code encapsulates common CRUD and other practical functions. For the latest code, see the http://b2core.b24.cn, and welcome criticism and suggestions. This section provides detailed comments on each part of the code. The frontend request format is Http: // domain/index. php/controller/method/param1/param2/ Or Http: // domain/controller/method/param1/param2/ /** * B2Core is a PHP-based MVC architecture initiated by Brant (brantx@gmail.com) * The core idea is to maximize the flexibility of php based on the MVC framework. * Vison 2.0 (20120515) **/ Define ('version', '2. 0 '); // Load the configuration file: database, url routing, etc. Require (APP. 'config. php '); // Load if the database is configured If (isset ($ db_config) $ db = new db ($ db_config ); // Get the requested address compatible with SAE $ Uri = ''; If (isset ($ _ SERVER ['path _ info']) $ uri = $ _ SERVER ['path _ info']; If (isset ($ _ SERVER ['orig _ PATH_INFO ']) $ uri = $ _ SERVER ['orig _ PATH_INFO']; If (isset ($ _ SERVER ['script _ url']) $ uri = $ _ SERVER ['script _ url']; // Remove Magic_Quotes If (get_magic_quotes_gpc () // Maybe wocould be removed in php6 { Function stripslashes_deep ($ value) { $ Value = is_array ($ value )? Array_map ('stripslashes _ deep ', $ value): (isset ($ value )? Stripslashes ($ value): null ); Return $ value; } $ _ POST = stripslashes_deep ($ _ POST ); $ _ GET = stripslashes_deep ($ _ GET ); $ _ COOKIE = stripslashes_deep ($ _ COOKIE ); } // Execute the url route configured in config. php Foreach ($ route_config as $ key => $ val) { $ Key = str_replace (': any',' ([^ \/.] +) ', str_replace (': num', '([0-9] +)', $ key )); If (preg_match ('# ^ '. $ key. '#', $ uri) $ uri = preg_replace ('# ^ '. $ key. '#', $ val, $ uri ); } // Obtain the parameters of each segment in the URL $ Uri = rtrim ($ uri ,'/'); $ Seg = explode ('/', $ uri ); $ Des_dir = $ dir = ''; /* Load the schema file _ construct. php of all directories at the controller's upper level in sequence * The architecture file can contain the parent classes of all controllers in the current directory and the functions to be called. */ Foreach ($ seg as $ cur_dir) { $ Des_dir. = $ cur_dir ."/"; If (is_file (APP. 'c'. $ des_dir. '_ construct. php ')){ Require (APP. 'c'. $ des_dir. '_ construct. php '); $ Dir. = array_shift ($ seg ).'/'; } Else { Break; } } /* Call the method in the controller based on the url. if the method does not exist, error 404 is returned. * Default request class home-> index () */ $ Dir = $ dir? $ Dir :'/'; Array_unshift ($ seg, NULL ); $ Class = isset ($ seg [1])? $ Seg [1]: 'home '; $ Method = isset ($ seg [2])? $ Seg [2]: 'index '; If (! Is_file (APP. 'c'. $ dir. $ class. '. php') show_404 (); Require (APP. 'c'. $ dir. $ class. '. php '); If (! Class_exists ($ class) show_404 (); If (! Method_exists ($ class, $ method) show_404 (); $ B2 = new $ class (); Call_user_func_array (array (& $ B2, $ method), array_slice ($ seg, 3 )); /* B2 system functions * Load ($ path, $ instantiate) can dynamically load objects, such as controllers, models, and library classes. * $ Path is the address of the class file relative to the app. * When the value of $ instantiate is False, only files are referenced and objects are not instantiated. * When $ instantiate is an array, the array content is passed to the object as a parameter. */ Function & load ($ path, $ instantiate = TRUE) { $ Param = FALSE; If (is_array ($ instantiate )){ $ Param = $ instantiate; $ Instantiate = TRUE; } $ File = explode ('/', $ path ); $ Class_name = array_pop ($ file ); $ Object_name = md5 ($ path ); Static $ objects = array (); If (isset ($ objects [$ object_name]) return $ objects [$ object_name]; Require (APP. $ path. '. php '); If ($ instantiate = FALSE) $ objects [$ object_name] = TRUE; If ($ param) $ objects [$ object_name] = new $ class_name ($ param ); Else $ objects [$ object_name] = new $ class_name (); Return $ objects [$ object_name]; } /* Call the view File * Function view ($ view, $ param = array (), $ cache = FALSE) * $ View is the address of the template file relative to the app/v/Directory. the address should remove the. php file suffix. * $ Variables in the param array are passed to the template file. * $ Cache = TRUE is returned in the string format instead of the browser output result. */ Function view ($ view, $ param = array (), $ cache = FALSE) { If (! Empty ($ param) extract ($ param ); Ob_start (); If (is_file (APP. $ view. '. php ')){ Require APP. $ view. '. php '; } Else { Echo 'view'. $ view. 'desn \'t exsit '; Return false; } // Return the file data if requested If ($ cache = TRUE) { $ Buffer = ob_get_contents (); @ Ob_end_clean (); Return $ buffer; } } // Obtain the url segment, for example, the url is/abc/def/g/seg (1) = abc Function seg ($ I) { Global $ seg; Return isset ($ seg [$ I])? $ Seg [$ I]: false; } // Write logs Function write_log ($ level = 0, $ content = 'none ') { File_put_contents (APP. 'Log/'. $ level.'-'. date ('Y-m-D').'. log', $ content, FILE_APPEND ); } // Display error 404 Function show_404 () // Display error 404 { Header ("HTTP/1.1 404 Not Found "); // Call the template v/404.php View ('V/123 '); Exit (1 ); } /* B2Core system class */ // Abstract controller class. it is recommended that all controllers be sub-classes of this class or such classes. Class c { Function index () { Echo "created based on B2 v". VERSION "; } } // Database operations Class db { Var $ link; Var $ last_query; Function _ construct ($ conf) { $ This-> link = mysql_connect ($ conf ['host'], $ conf ['user'], $ conf ['password']); If (! $ This-> link ){ Die ('unable to connect: '. mysql_error ()); Return FALSE; } $ Db_selected = mysql_select_db ($ conf ['default _ db']); If (! $ Db_selected ){ Die ('unusable: '. mysql_error ()); } Mysql_query ('set names utf8', $ this-> link ); } // Execute the query. if the result is an array, the array data is returned. Function query ($ query) { $ Ret = array (); $ This-> last_query = $ query; $ Result = mysql_query ($ query, $ this-> link ); If (! $ Result ){ Echo "DB Error, cocould not query the database \ n "; Echo 'MySQL Error: '. mysql_error (); Echo 'error Query: '. $ query; Exit; } If ($ result = 1) return TRUE; While ($ record = mysql_fetch_assoc ($ result )) { $ Ret [] = $ record; } Return $ ret; } Function insert_id () {return mysql_insert_id ();} // Execute multiple SQL statements Function muti_query ($ query) { $ Sq = explode ("; \ n", $ query ); Foreach ($ sq as $ s ){ If (trim ($ s )! = '') $ This-> query ($ s ); } } } // Module class, which encapsulates the operations of the general CURD module. it is recommended that all modules inherit this class. Class m { Var $ db; Var $ table; Var $ fields; Var $ key; Function _ construct () { Global $ db; $ This-> db = $ db; $ This-> key = 'id '; } Public function _ call ($ name, $ arg ){ Return call_user_func_array (array ($ this, $ name), $ arg ); } // Insert data in array format to the database Function add ($ elem = FALSE) { $ Query_list = array (); If (! $ Elem) $ elem =$ _ POST; Foreach ($ this-> fields as $ f ){ If (isset ($ elem [$ f]) { $ Elem [$ f] = addslashes ($ elem [$ f]); $ Query_list [] = "'$ f' =' $ elem [$ f] '"; } } $ This-> db-> query ("insert into '$ this-> table 'set". implode (', ', $ query_list )); Return $ this-> db-> insert_id (); } // Delete a data entry Function del ($ id) { $ This-> db-> query ("delete from '$ this-> table 'Where". $ this-> key. "=' $ ID '"); } // Update data Function update ($ id, $ elem = FALSE) { $ Query_list = array (); If (! $ Elem) $ elem =$ _ POST; Foreach ($ this-> fields as $ f ){ If (isset ($ elem [$ f]) { $ Elem [$ f] = addslashes ($ elem [$ f]); $ Query_list [] = "'$ f' =' $ elem [$ f] '"; } } $ This-> db-> query ("update' $ this-> table 'set ". implode (',', $ query_list ). "where ". $ this-> key. "= '$ ID '"); } // Count Function count ($ where = '') { $ Res = $ this-> db-> query ("select count (*) as a from '$ this-> table 'Where 1 $ where "); Return $ res [0] ['A']; } /* Get ($ id) to get a data or * Get ($ postquery = '', $ cur = 1, $ psize = 30) multiple data entries */ Function get () { $ Args = func_get_args (); If (is_numeric ($ args [0]) return $ this->__ call ('Get _ one', $ args ); Return $ this->__ call ('Get _ get', $ args ); } Function get_one ($ id) { $ Id = is_numeric ($ id )? $ Id: 0; $ Res = $ this-> db-> query ("select * from '$ this-> table 'Where ". $ this-> key. "= '$ ID '"); If (isset ($ res [0]) return $ res [0]; Return false; } Function get_many ($ postquery = '', $ cur = 1, $ psize = 30) { $ Cur = $ cur> 0? $ Cur: 1; $ Start = ($ cur-1) * $ psize; $ Query = "select * from '$ this-> table' where 1 $ postquery limit $ start, $ psize "; Return $ this-> db-> query ($ query ); } } // All configuration content can be maintained in this file Error_reporting (E_ERROR ); If (file_exists (APP. 'config _ user. php') require (APP. 'config _ user. php '); // Configure url routing $ Route_config = array ( '/Reg/' => '/user/reg /', '/Logout/' => '/user/logout /', ); Define ('base ','/'); /* The database is configured according to SAE by default */ $ Db_config = array ( 'Host' => SAE_MYSQL_HOST_M. ':'. SAE_MYSQL_PORT, 'User' => SAE_MYSQL_USER, 'Password' => SAE_MYSQL_PASS, 'Default _ db' => SAE_MYSQL_DB );