stream_socket_sendto

(PHP 5, PHP 7, PHP 8)

stream_socket_sendtoSends a message to a socket, whether it is connected or not

Description

stream_socket_sendto(
    resource $socket,
    string $data,
    int $flags = 0,
    string $address = ""
): int|false

Sends the specified data through the socket.

Parameters

socket

The socket to send data to.

data

The data to be sent.

flags

The value of flags can be any combination of the following:

possible values for flags
STREAM_OOB Process OOB (out-of-band) data.

address

The address specified when the socket stream was created will be used unless an alternate address is specified in address.

If specified, it must be in dotted quad (or [ipv6]) format.

Return Values

Returns a result code, as an integer, or false on failure.

Examples

Example #1 stream_socket_sendto() Example

<?php
/* Open a socket to port 1234 on localhost */
$socket = stream_socket_client('tcp://127.0.0.1:1234');

/* Send ordinary data via ordinary channels. */
fwrite($socket, "Normal data transmit.");

/* Send more data out of band. */
stream_socket_sendto($socket, "Out of Band data.", STREAM_OOB);

/* Close it up */
fclose($socket);
?>

See Also

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User Contributed Notes 1 note

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9
mrforsythexeter at googlemail dot com
11 years ago
The return appears to be the size in bytes of the data written to the socket, or -1 on failure (this could be because of non blocking)
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