How can I check a IP address is a valid public IP address in PHP ? a clean IP
You can use native PHP function filter_var with FILTER_VALIDATE_IP to check the IP address is a valid public IP address or not
$ip = "192.0.0.1";
if (filter_var($ip, FILTER_VALIDATE_IP)) {
// a valid public IP address
} else {
// a invalid public IP address
}