get_cfg_var说明string get_cfg_var ( string option )
Gets the value of a PHP configuration This function will not return configuration information set when the PHP was compiled, or read from an Apache configuration file (using the php3_configuration_option directives). To check whether the system is using a configuration file, try retrieving the value of the cfg_file_path configuration setting. If this is available, a configuration file is being used. 返回值
Returns the current value of the PHP configuration variable specified by
| ||