How to match valid ip with (,) separated string.
I have one text box and user can input ip with comma (,) separated.
for that i m checking that the string contain valid ip string.
String should be
192.168.1.1
195.138.124.1,1.154.127.1
This is what i m sharing with you guys. have spent almost 2 to 3 hours for this so i would like to share this with you.so you may not have to spent hours for this.
this is the regular expression for match the IP with comma separate string.
/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}(?:,\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})*$/
As suggested, you will obtain stronger results using build-in filters:
function validateIPs ($input) {
foreach(explode(',', $input) as $ip)
if (!filter_var($ip, FILTER_VALIDATE_IP))
return false;
return true;
}