改进此URL正则表达式以正确处理#哈希

Question

我正在使用@diegoperini的regex来验证URL，不过这是：

http://domain.com/#foo -> Matches
http://domain.com#foo -> Doesn't match

我希望两者都匹配，我知道我可以使用filter_var，但在我的情况下，这不是一个选项。

当前正则表达式为：

_^(?:(?:https?|ftp)://)(?:S+(?::S*)?@)?(?:(?!10(?:.d{1,3}){3})(?!127(?:.d{1,3}){3})(?!169.254(?:.d{1,3}){2})(?!192.168(?:.d{1,3}){2})(?!172.(?:1[6-9]|2d|3[0-1])(?:.d{1,3}){2})(?:[1-9]d?|1dd|2[01]d|22[0-3])(?:.(?:1?d{1,2}|2[0-4]d|25[0-5])){2}(?:.(?:[1-9]d?|1dd|2[0-4]d|25[0-4]))|(?:(?:[a-zx{00a1}-x{ffff}0-9]+-?)*[a-zx{00a1}-x{ffff}0-9]+)(?:.(?:[a-zx{00a1}-x{ffff}0-9]+-?)*[a-zx{00a1}-x{ffff}0-9]+)*(?:.(?:[a-zx{00a1}-x{ffff}]{2,})))(?::d{2,5})?(?:/[^s]*)?$_iuS

Answer 1

不确定这是否会维护URL必须有效的所有其他情况。。

_^(?:(?:https?|ftp)://)(?:S+(?::S*)?@)?(?:(?!10(?:.d{1,3}){3})(?!127(?:.d{1,3}){3})(?!169.254(?:.d{1,3}){2})(?!192.168(?:.d{1,3}){2})(?!172.(?:1[6-9]|2d|3[0-1])(?:.d{1,3}){2})(?:[1-9]d?|1dd|2[01]d|22[0-3])(?:.(?:1?d{1,2}|2[0-4]d|25[0-5])){2}(?:.(?:[1-9]d?|1dd|2[0-4]d|25[0-4]))|(?:(?:[a-zx{00a1}-x{ffff}0-9]+-?)*[a-zx{00a1}-x{ffff}0-9]+)(?:.(?:[a-zx{00a1}-x{ffff}0-9]+-?)*[a-zx{00a1}-x{ffff}0-9]+)*(?:.(?:[a-zx{00a1}-x{ffff}]{2,})))(?::d{2,5})?(?:(/|#)[^s]*)?$_iuS