socket_sendto
(PHP 4 >= 4.1.0, PHP 5)
socket_sendto — Sends a message to a socket, whether it is connected or not
Description
The function socket_sendto() sends len bytes from buf through the socket socket to the port at the address addr.
Parameters
- socket
- 
      A valid socket resource created using socket_create(). 
- buf
- 
      The sent data will be taken from buffer buf. 
- len
- 
      len bytes from buf will be sent. 
- flags
- 
      The value of flags can be any combination of the following flags, joined with the binary OR (|) operator. Possible values for flags MSG_OOB Send OOB (out-of-band) data. MSG_EOR Indicate a record mark. The sent data completes the record. MSG_EOF Close the sender side of the socket and include an appropriate notification of this at the end of the sent data. The sent data completes the transaction. MSG_DONTROUTE Bypass routing, use direct interface. 
- addr
- 
      IP address of the remote host. 
- port
- 
      port is the remote port number at which the data will be sent. 
Return Values
socket_sendto() returns the number of bytes sent to the remote host, or FALSE if an error occurred.
Examples
Example #1 socket_sendto() Example
<?php
    $sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
    $msg = "Ping !";
    $len = strlen($msg);
    socket_sendto($sock, $msg, $len, 0, '127.0.0.1', 1223);
    socket_close($sock);
?>