Net_IPv4::validateNetmask()
Net_IPv4::validateNetmask() – Validate the syntax of the given netmask.
Synopsis
require_once 'Net/IPv4.php';
bool validateNetmask (
string $netmask
)
Description
Validates the syntax of a dot-quad formatted netmask. Returns true if netmask is valid, false if not.
Note
This function can be called statically.