php实现websocket实时消息推送，供大家参考，具体内容如下
SocketService.php
<?php/** * Created by xwx * Date: 2017/10/18 * Time: 14:33 */class SocketService{ private $address = "0.0.0.0"; private $port = 8083; private $_sockets; public function __construct($address = "", $port="") { if(!empty($address)){ $this->address = $address; } if(!empty($port)) { $this->port = $port; } } public function service(){ //获取tcp协议号码。 $tcp = getprotobyname("tcp"); $sock = socket_create(AF_INET, SOCK_STREAM, $tcp); socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1); if($sock < 0) { throw new Exception("failed to create socket: ".socket_strerror($sock).""); } socket_bind($sock, $this->address, $this->port); socket_listen($sock, $this->port); echo "listen on $this->address $this->port ... "; $this->_sockets = $sock; } public function run(){ $this->service(); $clients[] = $this->_sockets; while (true){ $changes = $clients; $write = NULL; $except = NULL; socket_select($changes, $write, $except, NULL); foreach ($changes as $key => $_sock){ if($this->_sockets == $_sock){ //判断是不是新接入的socket if(($newClient = socket_accept($_sock)) === false){ die("failed to accept socket: ".socket_strerror($_sock).""); } $line = trim(socket_read($newClient, 1024)); $this->handshaking($newClient, $line); //获取client ip socket_getpeername ($newClient, $ip); $clients[$ip] = $newClient; echo "Client ip:{$ip} "; echo "Client msg:{$line} "; } else { socket_recv($_sock, $buffer, 2048, 0); $msg = $this->message($buffer); //在这里业务代码 echo "{$key} clinet msg:",$msg,""; fwrite(STDOUT, "Please input a argument:"); $response = trim(fgets(STDIN)); $this->send($_sock, $response); echo "{$key} response to Client:".$response,""; } } } } /** * 握手处理 * @param $newClient socket * @return int 接收到的信息 */ public function handshaking($newClient, $line){ $headers = array(); $lines = preg_split("//", $line); foreach($lines as $line) { $line = chop($line); if(preg_match("/A(S+): (.*)z/", $line, $matches)) { $headers[$matches[1]] = $matches[2]; } } $secKey = $headers["Sec-WebSocket-Key"]; $secAccept = base64_encode(pack("H*", sha1($secKey . "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"))); $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake" . "Upgrade: websocket" . "Connection: Upgrade" . "WebSocket-Origin: $this->address" . "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket". "Sec-WebSocket-Accept:$secAccept"; return socket_write($newClient, $upgrade, strlen($upgrade)); } /** * 解析接收数据 * @param $buffer * @return null|string */ public function message($buffer){ $len = $masks = $data = $decoded = null; $len = ord($buffer[1]) & 127; if ($len === 126) { $masks = substr($buffer, 4, 4); $data = substr($buffer, 8); } else if ($len === 127) { $masks = substr($buffer, 10, 4); $data = substr($buffer, 14); } else { $masks = substr($buffer, 2, 4); $data = substr($buffer, 6); } for ($index = 0; $index < strlen($data); $index++) { $decoded .= $data[$index] ^ $masks[$index % 4]; } return $decoded; } /** * 发送数据 * @param $newClinet 新接入的socket * @param $msg 要发送的数据 * @return int|string */ public function send($newClinet, $msg){ $msg = $this->frame($msg); socket_write($newClinet, $msg, strlen($msg)); } public function frame($s) { $a = str_split($s, 125); if (count($a) == 1) { return "x81" . chr(strlen($a[0])) . $a[0]; } $ns = ""; foreach ($a as $o) { $ns .= "x81" . chr(strlen($o)) . $o; } return $ns; } /** * 关闭socket */ public function close(){ return socket_close($this->_sockets); }}$sock = new SocketService();$sock->run();web.html
<!doctype html><html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no"> <title>websocket</title> </head> <body> <input id="text" value=""> <input type="submit" value="send" onclick="start()"> <input type="submit" value="close" onclick="close()"><div id="msg"></div> <script> /** 0：未连接1：连接成功，可通讯2：正在关闭3：连接已关闭或无法打开*/ //创建一个webSocket 实例 var webSocket = new WebSocket("ws://192.168.31.152:8083"); webSocket.onerror = function (event){ onError(event); }; // 打开websocket webSocket.onopen = function (event){ onOpen(event); }; //监听消息 webSocket.onmessage = function (event){ onMessage(event); }; webSocket.onclose = function (event){ onClose(event); } //关闭监听websocket function onError(event){ document.getElementById("msg").innerHTML = "<p>close</p>"; console.log("error"+event.data); }; function onOpen(event){ console.log("open:"+sockState()); document.getElementById("msg").innerHTML = "<p>Connect to Service</p>"; }; function onMessage(event){ console.log("onMessage"); document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>" }; function onClose(event){ document.getElementById("msg").innerHTML = "<p>close</p>"; console.log("close:"+sockState()); webSocket.close(); } function sockState(){ var status = ["未连接","连接成功，可通讯","正在关闭","连接已关闭或无法打开"]; return status[webSocket.readyState]; } function start(event){ console.log(webSocket); var msg = document.getElementById("text").value; document.getElementById("text").value = ""; console.log("send:"+sockState()); console.log("msg="+msg); webSocket.send("msg="+msg); document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>" }; function close(event){ webSocket.close(); } </script> </body></html>以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持网页设计。
