如何检查一个IP地址是否在PHP中的两个IP范围内?

I have an IP address and I'm given two other IP addresses which together creates an IP range. I want to check if the first IP address is within this range. How can i find that out in PHP?

推荐答案

With ip2long() 很容易将您的地址转换为数字.在此之后，您只需检查数字是否在范围内:

if ($ip <= $high_ip && $low_ip <= $ip) {
  echo "in range";
}