thinkphp Source Read 2-----C function configuration file detailed

The configuration of the thinkphp is very flexible and can be customized for loading. I've probably looked at it, and there are a few places that will load the configuration file for later reading

/** * Get and set configuration parameters support Batch definition * * @param string|array $name * Config variable * @param mixed $value * Config value * @return mixed    */function C ($name = null, $value = null) {Static $_config = array ();            Get all if (empty ($name)) {if (! empty ($value) && $array = S (' c_ '. $value) without parameters) {        $_config = Array_merge ($_config, Array_change_key_case ($array));    } return $_config; }//Priority execution set GET or assign if (is_string ($name)) {if (! Strpos ($name, '. '))            {$name = Strtolower ($name); if (Is_null ($value)) return isset ($_config [$name])?            $_config [$name]: null;            $_config [$name] = $value;        Return        }//Two-D array set up and get support $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; $_config [$name [0] [$name [1]] = $value;    Return        }//Bulk Set if (Is_array ($name)) {$_config = Array_merge ($_config, Array_change_key_case ($name));        if (! empty ($value)) {//Save config Value S (' c_ '. $value, $_config);    } return; } return null; Avoid illegal parameters}

C () function at run time, the configuration file will be loaded into the C () function, as long as necessary to extract it, and can temporarily increase their C function

1.think.class.php Buildapp method, load public config file conf/convention.php, cache into C method

Load Core Convention configuration file Think.class.php line 60th        C (include Think_path. ' Conf/convention.php ');        if (Isset ($mode [' config '])) {//Load mode config file            C (Is_array ($mode [' config '])? $mode [' config ']:include $mode [' config ']);        }

2. Loading the project's config.php file

Load the project configuration file  Think.class.php line 66th        if (Is_file (Conf_path. ' config.php ')            C (include Conf_path. ') Config.php ');

3. Load the system tag profile thinkphp/conf/tags.php file, C (' extends ');

Load mode system behavior defines        if (C (' app_tags_on ')) {            if (isset ($mode [' extends ')]) {                C (' extends ', Is_array ($mode [' Extends '])? $mode [' Extends ']:include $mode [' extends ']);            } else{//default load system behavior extension definition                C (' extends ', include Think_path. ' Conf/tags.php ');            }        }

4. Load the application tag configuration app/conf/tags.php C (' extends ');

Load app behavior Definition        if (isset ($mode [' tags '])) {            C (' tags ', is_array ($mode [' tags '])? $mode [' Tags ']:include $mode [' tags ']);        ElseIf (Is_file (Conf_path. Tags.php ') {            //default load project configuration directory of tags file definition            C (' tags ', include Conf_path. ') Tags.php ');        }

5. If it is debug mode, load thinkphp/conf/debug.php, and apply state debug file

if (app_debug) {            //debug mode loads the system default profile            C (include Think_path. ' Conf/debug.php ');            Read the application state of debug mode            $status  =  C (' app_status ');            Load the corresponding project configuration file            if (Is_file (Conf_path. $status. php ')                //Allow the project to add Development mode configuration definition                C (include Conf_path. $status. php ');        } else{            //Deployment mode generates compiled files            build_runtime_cache ($compile);        }

6.app:init Call function.php load_ext_file function to load custom configuration file

In the Load_ext_file () function in function.php

/** * Load Dynamic extension file * @return void */function load_ext_file () {    //Load Custom external file    if (C (' Load_ext_file ')) {        $files      =  explode (', ', C (' load_ext_file '));        foreach ($files as $file) {            $file   = Common_path. $file. PHP ';            if (Is_file ($file)) include $file;        }    }    Load the custom dynamic profile    if (C (' Load_ext_config ')) {        $configs    =  C (' Load_ext_config ');        if (is_string ($configs)) $configs =  explode (', ', $configs);        foreach ($configs as $key = = $config) {            $file   = Conf_path. $config. PHP ';            if (Is_file ($file)) {                is_numeric ($key)? C (include $file): C ($key, include $file);}}}    

This article is from the "Deanne Lei" blog, please be sure to keep this source http://a3147972.blog.51cto.com/2366547/1413056