PHP FILTER_VALIDATE_IP Filter
The FILTER_VALIDATE_IP filter validates an IP address.
Possible flags : -
FILTER_FLAG_IPV4 - The value must be a valid IPv4 address
FILTER_FLAG_IPV6 - The value must be a valid IPv6 address
FILTER_FLAG_NO_PRIV_RANGE - The value must not be within a private range
FILTER_FLAG_NO_RES_RANGE - The value must not be within a reserved range
Example -
Example -