PHP FILTER_VALIDATE_IP ফিল্টার
Definition and Usage
The FILTER_VALIDATE_IP filter validates the value as an IP.
- Name: "validate_ip"
- ID-number: 275
Possible flags:
- FILTER_FLAG_IPV4 - Requires the value to be a valid IPv4 IP (e.g., 255.255.255.255)
- FILTER_FLAG_IPV6 - Requires the value to be a valid IPv6 IP (e.g., 2001:0db8:85a3:08d3:1319:8a2e:0370:7334)
- FILTER_FLAG_NO_PRIV_RANGE - Requires the value to be an RFC-specified private IP (e.g., 192.168.0.1)
- FILTER_FLAG_NO_RES_RANGE - Requires the value not to be within the reserved IP range. This flag accepts IPV4 and IPV6 values.
Example
Example 1
<?php
$ip = "192.168.0.1";
if(!filter_var($ip, FILTER_VALIDATE_IP))
{
echo "IP is not valid";
}
else
{
echo "IP is valid";
}
?>
Output:
IP is valid
Example 2
<?php
if(!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6))
{
echo "IP is not valid";
}
else
{
echo "IP is valid";
}
?>
Output:
IP is valid
