/**
* 获取指定键值的配置参数
*
* @param string $key
* @return null string array
*/
public static function get($key = '')
{
if ('' != $key) {
if (isset(self::$_config_cache[$key])) {
return self::$_config_cache[$key];
}
} else {
if (!empty(self::$_config_struct)) {
return self::$_config_struct;
}
}
class_exists('RThink_Controller_Front', false) || (require 'RThink/Controller/Front.php');
$config_file = RThink_Controller_Front::getInstance()->getParam('config_file');
$config_section = RThink_Controller_Front::getInstance()->getParam('config_section');
if (empty(self::$_config_struct)) {
include $config_file;
self::$_config_struct = ${$config_section};
}
if ('' == $key) {
return self::$_config_struct;
}
$key_list = explode('.', $key);
foreach ($key_list as $key_node) {
if (isset(self::$_config_cache[$key])) {
if (!isset(self::$_config_cache[$key][$key_node])) {
class_exists('RThink_Config_Exception', false) || (require 'RThink/Config/Exception.php');
throw new RThink_Config_Exception('配置文件节点链{' . $key . '}中[' . $key_node . ']节点不存在');
}
self::$_config_cache[$key] = self::$_config_cache[$key][$key_node];
} else {
if (!isset(self::$_config_struct[$key_node])) {
class_exists('RThink_Config_Exception', false) || (require 'RThink/Config/Exception.php');
throw new RThink_Config_Exception('配置文件节点链{' . $key . '}中[' . $key_node . ']节点不存在');
}
self::$_config_cache[$key] = self::$_config_struct[$key_node];
}
}
return self::$_config_cache[$key];
}
