socket_sendto() - socket通信函数
socket_sendto()
(PHP 4 >= 4.1.0, PHP 5, PHP 7)
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 $port= 0]): intThe function socket_sendto() sends$lenbytes from$bufthrough the socket$socketto the$portat the address$addr.
参数
$socketA valid socket resource created using socket_create().
$bufThe sent data will be taken from buffer$buf.
$len$lenbytes from$bufwill be sent.
$flagsThe value of$flagscan be any combination of the following flags, joined with the binary OR(|)operator.
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. |
IP address of the remote host.
$port$portis 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
socket_sendto() Example
参见
socket_send()
Sends data to a connected socket
Here's how you can make an udp broadcast, useful sometimes, and does seem hard to figure out hwo to do..
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