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# send

Perl 5 version 10.1 documentation
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# send

Perl functions A-Z | Perl functions by category | The 'perlfunc' manpage

- send SOCKET,MSG,FLAGS,TO

- send SOCKET,MSG,FLAGS

  Sends a message on a socket. Attempts to send the scalar MSG to the SOCKET filehandle. Takes the same flags as the system call of the same name. On unconnected sockets you must specify a destination to send TO, in which case it does a C `sendto` . Returns the number of characters sent, or the undefined value if there is an error. The C system call sendmsg(2) is currently unimplemented. See "UDP: Message Passing" in perlipc for examples.

  Note the characters: depending on the status of the socket, either (8-bit) bytes or characters are sent. By default all sockets operate on bytes, but for example if the socket has been changed using binmode() to operate with the `:encoding(utf8)` I/O layer (see "open", or the `open` pragma, open), the I/O will operate on UTF-8 encoded Unicode characters, not bytes. Similarly for the `:encoding` pragma: in that case pretty much any characters can be sent.

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