Description
string 
get_cfg_var ( string varname )
     Returns the current value of the PHP configuration variable
     specified by varname, or FALSE if an
     error occurs.
    
     It 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.
    
     See also ini_get().