Common/common. php file Common Function Analysis in ThinkPHP,

Common/common. php file Common Function Analysis in ThinkPHP,

This document analyzes Common functions of ThinkPHP/common/Common. php files. We will share this with you for your reference. The details are as follows:

/*** You can obtain and set configuration parameters in batches. * @ param string | array $ name configuration variable * @ param mixed $ value configuration value * @ return mixed */function C ($ name = null, $ value = null) {static $ _ config = array (); // obtain all if (empty ($ name) {if (! Empty ($ value) & $ array = cache ('C _'. $ value) {// array_change_key_case (): change all key names in the array to lowercase or uppercase. By default, all key names are changed to lower case $ _ config = array_merge ($ _ config, array_change_key_case ($ array);} return $ _ config;} // prioritize the settings to get or assign values. If parameter 2 is blank, it is used to get the value of the configuration variable; if parameter 2 is not empty, it is the case where the value is set for the configuration variable if (is_string ($ name )) {// set the value of the configuration variable or obtain the value of the configuration variable if (! Strpos ($ name ,'. ') {// if no ". ", run the following code $ name = strtolower ($ name); // convert the configuration variable name to lowercase if (is_null ($ value )) return isset ($ _ config [$ name])? $ _ Config [$ name]: null; // when the configuration variable value is obtained, the value of the configuration variable is returned. $ _ config [$ name] = $ value; // return when setting values for configuration variables;} // supports $ name = explode ('. ', $ name); $ name [0] = strtolower ($ name [0]); if (is_null ($ value )) return isset ($ _ config [$ name [0] [$ name [1])? $ _ Config [$ name [0] [$ name [1]: null; // obtain the value $ _ config [$ name [0] [$ name [1] = $ value; // return of the value assignment ;} // batch set if (is_array ($ name) {// batch set the value // array_change_key_case (): change all the key names in the array to lowercase or uppercase, by default, the keys are changed to lower-case letters. Note: only the key names are changed to lower-case letters. $ _ config = array_merge ($ _ config, array_change_key_case ($ name); if (! Empty ($ value) {// Save the configuration value cache ('C _ '. $ value, $ _ config) ;}return ;} return null; // avoid invalid parameters}

/*** Process tag extensions, for example, call the project start tag, tag ('app _ in in '); * @ param string $ tag name * @ param mixed $ params input parameter * @ return mixed */function tag ($ tag, & $ params = NULL) {// system or framework label extension // C ('extends ', include THINK_PATH. 'conf/tags. php '); // This file is very important $ extends = C ('extends. '. $ tag); // $ _ config ['extends '] [app_init] // application or project tag extension // C ('tags', include CONF_PATH. 'tags. php '); // You can also compile your own tags in the project. PHP File $ tags = C ('tags. '. $ tag); // $ _ Config ['tags'] [app_init] if (! Empty ($ tags) {// if $ tags is not empty if (empty ($ tags ['_ overlay']) &! Empty ($ extends) {// merged extension $ tags = array_unique (array_merge ($ extends, $ tags ));} elseif (isset ($ tags ['_ overlay']) {// overlay the system tag unset by setting '_ overlay' => 1 ($ tags ['_ overlay']);} elseif (! Empty ($ extends) {$ tags = $ extends;} if ($ tags) {if (APP_DEBUG) {G ($ tag. 'start'); trace ('['. $ tag. '] -- START --', '', 'info');} // execute the extended foreach ($ tags as $ key => $ name) {if (! Is_int ($ key) {// specifies the full path of the behavior class for mode extension $ name = $ key;} // creates the behavior class object, for example: $ class = $ name. 'behavior '; $ Behavior = new $ class (); // creates an action class object B ($ name, $ params); // executes an action, parameter 1-behavior name parameter 2-input parameter} if (APP_DEBUG) {// trace ('[') of the Execution log that records behavior ('['. $ tag. '] -- END -- [RunTime :'. G ($ tag. 'start', $ tag. 'end', 6 ). 's] ', '', 'info') ;}} else {// return false if no action is executed ;}}

/*** Execute a behavior * @ param string $ name behavior name * @ param Mixed $ params parameter * @ return void */function B ($ name, & $ params = NULL) {// behavior class in Think. class. the autoload ($ class) function in the PHP file automatically loads $ class = $ name. 'behavior '; // name of the Behavior class G ('behaviorstart'); $ behavior = new $ class (); // create a behavior class Object $ behavior-> run ($ params); // pass the parameter if (APP_DEBUG) to the current behavior class Object) {// trace ('run '. $ name. 'behavior [RunTime :'. G ('behaviorstart', 'behaviorend', 6 ). 's] ', '', 'info ');}}

Note: The behavior class, model class, and controller class are automatically loaded in the autoload function in the Think. class. php file:

/*** The system automatically loads the ThinkPHP class library * and supports configuring the automatic loading path * @ param string $ class object class name * @ return void * // behavior class, model class, Controller classes are all public static function autoload ($ class) automatically loaded through the autoload function) {// check whether the alias Defines if (alias_import ($ class) return; // The behavior class is automatically loaded through this function if (substr ($ class,-8) = 'behavior ') {// load Behavior if (require_cache (CORE_PATH. 'behavior /'. $ class. '. class. php ') | require_cache (EXTEND_PATH. 'behavior /'. $ class. '. class. php ') | require_cache (LIB_PATH. 'behavior /'. $ class. '. class. php ') | (defined ('mode _ name') & require_cache (MODE_PATH.ucwords (MODE_NAME ). '/Behavior /'. $ class. '. class. php ') {return ;}} elseif (substr ($ class,-5) = 'model ') {// load model if (defined ('group _ name') & require_cache (LIB_PATH. 'model /'. GROUP_NAME. '/'. $ class. '. class. php ') | require_cache (LIB_PATH. 'model /'. $ class. '. class. php ') | require_cache (EXTEND_PATH. 'model /'. $ class. '. class. php ') {return ;}} elseif (substr ($ class,-6) = 'action ') {// load the controller if (defined ('group _ name') & require_cache (LIB_PATH. 'Action /'. GROUP_NAME. '/'. $ class. '. class. php ') | require_cache (LIB_PATH. 'Action /'. $ class. '. class. php ') | require_cache (EXTEND_PATH. 'Action /'. $ class. '. class. php ') {return ;}// Based on the automatic loading path settings, try to search $ paths = explode (', ', C ('app _ AUTOLOAD_PATH ')); foreach ($ paths as $ path) {if (import ($ path. '. '. $ class) // return if the class is successfully loaded ;}}

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