accept(2) - perldoc - phpman

    accept NEWSOCKET,GENERICSOCKET
            Accepts an incoming socket connect, just as accept(2) does.
            Returns the packed address if it succeeded, false otherwise. See
            the example in "Sockets: Client/Server Communication" in
            perlipc.

            On systems that support a close-on-exec flag on files, the flag
            will be set for the newly opened file descriptor, as determined
            by the value of $^F. See "$^F" in perlvar.