Php/docs/function.socket-sendto

• PHP Manual
• Socket 函数
• Sends a message to a socket, whether it is connected or not

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_sendto ( resource $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 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 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);?>

参见

• socket_send() - Sends data to a connected socket