<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');/*** CodeIgniter Version*/define('CI_VERSION', '2.1.4');/*** CodeIgniter Branch (Core = TRUE, Reactor = FALSE)*/define('CI_CORE', FALSE);require(BASEPATH.'core/Common.php');/* 如有有相应的环境的配置文件，优先加载配置下的常量定义文件，否则加载config目录下的常量定义文件 */if (defined('ENVIRONMENT') AND file_exists(APPPATH.'config/'.ENVIRONMENT.'/constants.php')){require(APPPATH.'config/'.ENVIRONMENT.'/constants.php');}else{require(APPPATH.'config/constants.php');}set_error_handler('_exception_handler');if ( ! is_php('5.3')){@set_magic_quotes_runtime(0); // Kill magic quotes
    }/**  Set the subclass_prefix*/if (isset($assign_to_config['subclass_prefix']) AND $assign_to_config['subclass_prefix'] != ''){get_config(array('subclass_prefix' => $assign_to_config['subclass_prefix']));}/**  Set a liberal script execution time limit*///if(function_exists("set_time_limit") && @!ini_get("safe_mode"))if (function_exists("set_time_limit") == TRUE AND @ini_get("safe_mode") == 0){@set_time_limit(300);}$BM =& load_class('Benchmark', 'core');$BM->mark('total_execution_time_start');$BM->mark('loading_time:_base_classes_start');/**  Instantiate the hooks class*/$EXT =& load_class('Hooks', 'core');/**  Is there a "pre_system" hook?*/$EXT->_call_hook('pre_system');/**  Instantiate the config class*/$CFG =& load_class('Config', 'core');// Do we have any manually set config items in the index.php file?if (isset($assign_to_config)){$CFG->_assign_to_config($assign_to_config);}/**  Instantiate the UTF-8 class*/$UNI =& load_class('Utf8', 'core');/** ------------------------------------------------------*  Instantiate the URI class* ------------------------------------------------------*/$URI =& load_class('URI', 'core');/**  Instantiate the routing class and set the routing*/$RTR =& load_class('Router', 'core');$RTR->_set_routing();// Set any routing overrides that may exist in the main index fileif (isset($routing)){$RTR->_set_overrides($routing);}/**  Instantiate the output class*/$OUT =& load_class('Output', 'core');/**    Is there a valid cache file?  If so, we're done...*/if ($EXT->_call_hook('cache_override') === FALSE){if ($OUT->_display_cache($CFG, $URI) == TRUE){exit;}}/** Load the security class for xss and csrf support*/$SEC =& load_class('Security', 'core');/**  Load the Input class and sanitize globals*/$IN    =& load_class('Input', 'core');/**  Load the Language class*/$LANG =& load_class('Lang', 'core');/**  Load the app controller and local controller*/// Load the base controller classrequire BASEPATH.'core/Controller.php';function &get_instance(){return CI_Controller::get_instance();}if (file_exists(APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller.php')){require APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller.php';}if ( ! file_exists(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().'.php')){show_error('Unable to load your default controller. Please make sure the controller specified in your Routes.php file is valid.');}include(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().'.php');$BM->mark('loading_time:_base_classes_end');/**  Security check*/$class  = $RTR->fetch_class();$method = $RTR->fetch_method();if ( ! class_exists($class)OR strncmp($method, '_', 1) == 0OR in_array(strtolower($method), array_map('strtolower', get_class_methods('CI_Controller')))){if ( ! empty($RTR->routes['404_override'])){$x = explode('/', $RTR->routes['404_override']);$class = $x[0];$method = (isset($x[1]) ? $x[1] : 'index');if ( ! class_exists($class)){if ( ! file_exists(APPPATH.'controllers/'.$class.'.php')){show_404("{$class}/{$method}");}include_once(APPPATH.'controllers/'.$class.'.php');}}else{show_404("{$class}/{$method}");}}/**  Is there a "pre_controller" hook?*/$EXT->_call_hook('pre_controller');/**  Instantiate the requested controller*/// Mark a start point so we can benchmark the controller$BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_start');$CI = new $class();/**  Is there a "post_controller_constructor" hook?*/$EXT->_call_hook('post_controller_constructor');/**  Call the requested method*/// Is there a "remap" function? If so, we call it insteadif (method_exists($CI, '_remap')){$CI->_remap($method, array_slice($URI->rsegments, 2));}else{if ( ! in_array(strtolower($method), array_map('strtolower', get_class_methods($CI)))){if ( ! empty($RTR->routes['404_override'])){$x = explode('/', $RTR->routes['404_override']);$class = $x[0];$method = (isset($x[1]) ? $x[1] : 'index');if ( ! class_exists($class)){if ( ! file_exists(APPPATH.'controllers/'.$class.'.php')){show_404("{$class}/{$method}");}include_once(APPPATH.'controllers/'.$class.'.php');unset($CI);$CI = new $class();}}else{show_404("{$class}/{$method}");}}call_user_func_array(array(&$CI, $method), array_slice($URI->rsegments, 2));}// Mark a benchmark end point$BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_end');/**  Is there a "post_controller" hook?*/$EXT->_call_hook('post_controller');/**  Send the final rendered output to the browser*/if ($EXT->_call_hook('display_override') === FALSE){$OUT->_display();}/**  Is there a "post_system" hook?*/$EXT->_call_hook('post_system');/**  Close the DB connection if one exists*/if (class_exists('CI_DB') AND isset($CI->db)){$CI->db->close();}/* End of file CodeIgniter.php */