Php IP address range restriction method

This article mainly introduces php's method of limiting IP address ranges, which involves php's IP address operation skills and is very useful, for more information about how to limit the IP address range of php, see the example in this article. Share it with you for your reference. The details are as follows:

Only IP addresses within the specified range can access

function get_real_ipaddress() { if (!empty($_SERVER['HTTP_CLIENT_IP'])) {  return $_SERVER['HTTP_CLIENT_IP']; } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {  return $_SERVER['HTTP_X_FORWARDED_FOR']; } return $_SERVER['REMOTE_ADDR'];}function in_ip_range($ip, $ip_one, $ip_two = false) { if(!$ip_two) {  return $ip_one === $ip; } return ip2long($ip_one) * -1 >= ip2long($ip) * -1 && ip2long($ip_two) * -1 <= ip2long($ip) * -1;}function validate_ip() { $ip = explode(':', get_real_ipaddress()); $ip = $ip[0]; if(in_ip_range($ip, '212.76.229.115', '212.76.229.120')) {  return true; } else if(in_ip_range($ip, '194.78.4.66', '194.78.4.79')) {  return true; } else if(in_ip_range($ip, '194.8.4.78', '194.8.4.78')) {  return true; } else if(in_ip_range($ip, '0', '1')) { // local  return true; } header('Location: http://www.bitsCN.com');}

I hope this article will help you with php programming.