aFightCoder的专栏

if ( ! function_exists('is_loaded')){function &is_loaded($class = ''){static $_is_loaded = array();if ($class != ''){$_is_loaded[strtolower($class)] = $class;}return $_is_loaded;}}此函数的作

if ( ! function_exists('get_config')){function &get_config($replace = array()){static $_config;if (isset($_config)){return $_config[0];}// 检查是否有相应开发环境的配置文件?if ( ! defined('ENVIRONMENT') OR

if ( ! function_exists('load_class')){function &load_class($class, $directory ='libraries', $prefix = 'CI_'){static $_classes = array();//定义静态数组变量保存初始化的对象// Does the class exist?  If so, we're

//用于获取配置文件单项配置if ( ! function_exists('config_item')){function config_item($item){static $_config_item = array();//如果_config_item数组选项没有被设置，则先载入配合文件if ( ! isset($_config_item[$item])){$config =

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