The UDP communication of the socket of PHP

How does the PHP socket communicate with UDP? This paper mainly introduces the UDP communication method of socket communication in PHP, and analyzes the relevant skills of PHP based on socket for UDP communication. We hope to help you.

This paper describes the UDP communication method of socket communication in PHP. Share to everyone for your reference. Specific as follows:

1. Create a simple UDP server

Server information $server = ' udp://127.0.0.1:9998 '; Message end symbol $msg _eof = "\ n"; $socket = Stream_socket_server ($server, $errno, $errstr, Stream_server_bind); if (! $socket) {die   ("$errstr ($errno)") and} do {   //receive the information sent by the client   $INMSG = Stream_socket_recvfrom ($socket, 1024, 0, $peer);   Service-side print out the relevant information   echo "Client: $peer \ n";   echo "Receive: {$INMSG}";   Send message to client   $OUTMSG = substr ($INMSG, 0, (Strrpos ($INMSG, $msg _eof)). '--'. Date ("D M J h:i:s y\r\n");   Stream_socket_sendto ($socket, $OUTMSG, 0, $peer); } while ($INMSG!== false);

2. Simple Client

function udpget ($sendMsg = ', $ip = ' 127.0.0.1 ', $port = ' 9998 ') {$handle = stream   _socket_client ("udp://{$ip}:{$port}", $errno, $ERRSTR);   if (! $handle) {die ("ERROR: {$errno}-{$errstr}\n"); } fwrite ($handle, $SENDMSG. "   \ n ");   $result = Fread ($handle, 1024);   Fclose ($handle); return $result; } $result = Udpget (' Hello world '); echo $result;