socket_sendto
(PHP 4 >= 4.1.0, PHP 5, PHP 7)
socket_sendto — Sends a message to a socket, whether it is connected or not
说明
$socket
, string $buf
, int $len
, int $flags
, string $addr
[, int $port
= 0
] ) : int
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 resource created using socket_create().
-
buf
-
The sent data will be taken from buffer
buf
. -
len
-
len
bytes frombuf
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 FALSE
if an error occurred.
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);
?>