PHP FILTER_VALIDATE_IP Filter
What is FILTER_VALIDATE_IP in PHP?
Explanation
PHP FILTER_VALIDATE_IP is used to check whether the given IP address is valid or not.
Name: "validate_ip"
ID-number: 275
<?php
$val="125.155.155.155";
if(filter_var($val, FILTER_VALIDATE_IP , FILTER_FLAG_IPV4))
{
echo "Valid Ip";
}
else
{
echo "Invalid Ip";
}
?>
Result :
Valid Ip
Name: "validate_ip"
ID-number: 275
Options:
| FILTER_FLAG_IPV4 | Requires the value to be a valid IPv4 IP (like 125.155.155.155) |
| FILTER_FLAG_IPV6 | Requires the value to be a valid IPv6 IP (like 2001:0db8:85a3:08d3:1319:8a2e:0370:7334) |
| FILTER_FLAG_NO_PRIV_RANGE | Requires that the value is not within an RFC specified private range IP (like 192.168.0.1) |
| FILTER_FLAG_NO_RES_RANGE | Requires that the value is not within the reserved IP range. This flag takes both IPV4 and IPV6 values |
Example :
<?php
$val="125.155.155.155";
if(filter_var($val, FILTER_VALIDATE_IP , FILTER_FLAG_IPV4))
{
echo "Valid Ip";
}
else
{
echo "Invalid Ip";
}
?>
Result :
Valid Ip
