Validate the value as an IP address in PHP
Description
The following code shows how to validate the value as an IP address.
Example
<?php// w ww . j ava 2 s. c o m
$ip = "192.168.0.1";
if(!filter_var($ip, FILTER_VALIDATE_IP)){
echo "IP is not valid";
}else{
echo "IP is valid";
}
?>
The code above generates the following result.
