$options :
$_GET :
$_POST :
$_REQUEST :
$_SERVER :
$_ENV :
$_COOKIE :
$_SESSION :
$_FILES :
$GLOBALS :
$STATICS :
$CLASS_STATICS :
$is_inited :
__construct()
reset()
session_start(array $options = array())
session_id( $session_id)
session_destroy()
session_set_save_handler( $handler)
_GLOBALS( $k, $v = null)
_STATICS( $name, $value = null, $parent)
_CLASS_STATICS( $class_name, $var_name)
initOptions(array $options)