摘要：可以当作简易判断站点是否用PHP架设。PHP_LOGO_GUIDhttp://www.php.net/?=PHPE9568F34-D428-11d2-A769-00AA001ACF42PHP_EGG_LOGO_GUIDhttp://www.php.net/?=PHPE9568F36-D428-11d2-A769-00AA001ACF42ZEND_LOGO_GUIDh