PHP stream_socket_sendto() Function

The PHP stream_socket_sendto() function is used to send the specified data through the socket.

Syntax

stream_socket_sendto(socket, data, flags, address)

Parameters

`socket`	`Required.` Specify the socket to send data to.
`data`	`Required.` Specify the data to be sent.
`flags`	`Optional.` The value of flags can be any combination of the following: STREAM_OOB - Process OOB (out-of-band) data.
`address`	`Optional.` 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 Value

Returns a result code, as an integer.

Example: stream_socket_sendto() example

The example below shows the usage of stream_socket_sendto() function.

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

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

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

//closing the socket
fclose($socket);
?>

❮ PHP Streams Reference