socket_sendto
(PHP 4 >= 4.0.7, PHP 5)
socket_sendto — Sends a message to a socket, whether it is connected or not
说明
The function socket_sendto() sends len bytes from buf through the socket socket to the port at the address addr .
参数
- socket
-
A valid socket ressource 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.
返回值
socket_sendto() returns the number of bytes sent to the remote host or -1 if an error occured.
范例
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);
?>
