Socket 函数
PHP 手册

socket_sendto

(PHP 4 >= 4.1.0, PHP 5)

socket_sendtoSends a message to a socket, whether it is connected or not

说明

int socket_sendto ( resource $socket , string $buf , int $len , int $flags , string $addr [, int $port=0 ] )

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_INETSOCK_DGRAMSOL_UDP);

    
$msg "Ping !";
    
$len strlen($msg);

    
socket_sendto($sock$msg$len0'127.0.0.1'1223);
    
socket_close($sock);
?>

参见


Socket 函数
PHP 手册