Sisimai::RFC11233pm

Internet hostname related class

Usage

    use Sisimai::RFC1123;
    print Sisimai::RFC1123->is_internethost("mx2.example.jp"); # 1
    print Sisimai::RFC1123->is_internethost("localhost");      # 0

Overview

"Sisimai::RFC1123" is a class related to the Internet hosts

Class methods

"is_internethost(String)"

is_internethost() method returns true when the argument is a valid hostname

    print Sisimai::RFC1123->is_internethost("mx2.example.jp"); # 1
    print Sisimai::RFC1123->is_internethost("localhost");      # 0