Create WebSocket service using php

Execution method:
First modify the ip of server.php and index.html
Execute through the command line [php path]php.exe "[file path]server.php"
Then open index.html through the browser

include 'websocket.class.php';

$config=array(
 'address'=>'192.168.0.200',
 'port'=>'8000',
 ' event'=>'WSevent',//The function name of the callback function
 'log'=>true,
);
$websocket = new websocket($config);
$websocket->run();
 function WSevent($type,$event){
 global $websocket;
 if('in'==$type){
 $websocket->log('Customer entry id:'.$event['k']) ;
 }elseif('out'==$type){
 $websocket->log('Customer exit id:'.$event['k']);
 }elseif('msg'==$type) {
 $websocket->log($event['k'].'Message:'.$event['msg']);
 roboot($event['sign'],$event['msg']) ;
 }
}

function roboot($sign,$t){
 global $websocket;
 switch ($t)
 {
 case 'hello':
 $show='hello,GIt @ OSC';
 break ;
 case 'name':
 $show='Robot';
 break;
 case 'time':
 $show='Current time:'.date('Y-m-d H:i:s');
 break;
 case 'Goodbye':
 $show='( ^_^ )/~~Bye';
 $websocket->write($sign,'Robot:'.$show);
 $websocket->close($ sign);
 return;
 break;
 case 'Heavenly King Covers Earthly Tiger':
 $array = array('Chicken stewed with mushrooms', 'Pagoda shakes the river demon', 'Every grain of it is hard work');
 $show = $array[rand(0,2)];
 break;
 default:
 $show='( ⊙o⊙?) If you don’t understand, you can try saying: hello, name, time, goodbye, the king of heaven covers the earth and the tiger.' ;
 }
 $websocket->write($sign,'Robot:'.$show);
}
?>

websocket_TEST


</li>
<li>=======websocket======</li>
<li>





<script></li>
<li>function link(){</li>
<li> var url='ws: //192.168.0.200:8000';</li>
<li> socket=new WebSocket(url);</li>
<li> socket.onopen=function(){log('Connection successful')}</li>
<li> socket.onmessage=function(msg){log('Get message :'+msg.data);console.log(msg);}</li>
<li> socket.onclose=function(){log('disconnect')}</li>
<li>}</li>
<li>function dis(){</li>
<li> socket.close();</li>
<li> socket=null;</li>
<li>}</li>
<li>function log(var1){</li>
<li> $('.log').append(var1+"rn");</li>
<li>}</li>
<li>function send(){</li>
<li> socket.send($('#text') .attr('value'));</li>
<li>}</li>
<li>function send2(){</li>
<li> var json = JSON.stringify({'type':'php','msg':$('#text2').attr('value ')})</li>
<li> socket.send(json);</li>
<li>}</li>
<li></script>

/*
Create class websocket($config);
$config structure:
$config=array(
 'address'=>'192.168.0.200',//Bind address
 'port'=>'8000',//Bind port
 'event'=>'WSevent',//The function name of the callback function
 'log'=>true,//The command line displays records
) ;

Callback function return data format
function WSevent($type,$event)

$type string event types have the following three types
in client enters
out client disconnects
msg client message arrives
all are Lower case

$event array
$event['k'] userid of built-in user list;
$event['sign'] customer mark
$event['msg'] only when message $type='msg' is received There is this information

 Method:
run() run
search(label) traverse to get the id of the label
close(label) disconnect
write(label, information) push information
idwrite(id, information) push information

Attribute:
$users customer list
Structure:
$users=array(
[user id]=>array('socket'=>[mark],'hand'=[whether to shake hands - Boolean value]),
[userid]=>arr....
)
*/

class websocket{
 public $log;
 public $event;
 public $signets;
 public $users;
 public $master;
 public function __construct($config){
 if (substr(php_sapi_name(), 0, 3) !== 'cli') {
 die("Please run through command line mode!");
 }
 error_reporting(E_ALL) ;
 set_time_limit(0);
 ob_implicit_flush();
 $this->event = $config['event'];
 $this->log = $config['log'];
 $this-> master=$this->WebSocket($config['address'], $config['port']);
 $this->sockets=array('s'=>$this->master);
 }
 function WebSocket($address,$port){
 $server = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
 socket_set_option($server, SOL_SOCKET, SO_REUSEADDR, 1);
 socket_bind($server, $address, $port );
 socket_listen($server);
 $this->log('Start listening: '.$address.' : '.$port);
 return $server;
 }
 function run(){
 while( true){
 $changes=$this->sockets;
 @socket_select($changes,$write=NULL,$except=NULL,NULL);
 foreach($changes as $sign){
 if($sign= =$this->master){
 $client=socket_accept($this->master);
 $this->sockets[]=$client;
 $user = array(
 'socket'=>$ client,
 'hand'=>false,
 );
 $this->users[] = $user;
 $k=$this->search($client);
 $eventreturn = array('k '=>$k,'sign'=>$sign);
 $this->eventoutput('in',$eventreturn);
 }else{
 $len=socket_recv($sign,$buffer,2048 ,0);
 $k=$this->search($sign);
 $user=$this->users[$k];
 if($len<7){
 $this->close ($sign);
 $eventreturn = array('k'=>$k,'sign'=>$sign);
 $this->eventoutput('out',$eventreturn);
 continue;
 }
 if(!$this->users[$k]['hand']){//No handshake for handshake
 $this->handshake($k,$buffer);
 }else{
 $buffer = $this->uncode($buffer);
 $eventreturn = array('k'=>$k,'sign'=>$sign,'msg'=>$buffer);
 $this- >eventoutput('msg',$eventreturn);
 }
 }
 }
 }
 }
 function search($sign){//Get the id through sign traversal
 foreach ($this->users as $k= >$v){
 if($sign==$v['socket'])
 return $k;
 }
 return false;
 }
 function close($sign){//Disconnect via sign
 $k=array_search($sign, $this->sockets);
 socket_close($sign);
 unset($this->sockets[$k]);
 unset($this->users[$k ]);
 }
 function handshake($k,$buffer){
 $buf = substr($buffer,strpos($buffer,'Sec-WebSocket-Key:')+18);
 $key = trim(substr ($buf,0,strpos($buf,"rn")));
 $new_key = base64_encode(sha1($key."258EAFA5-E914-47DA-95CA-C5AB0DC85B11",true));
 $new_message = " HTTP/1.1 101 Switching Protocolsrn";
 $new_message .= "Upgrade: websocketrn";
 $new_message .= "Sec-WebSocket-Version: 13rn";
 $new_message .= "Connection: Upgradern";
 $new_message .= "Sec-WebSocket-Accept: " . $new_key . "rnrn";
 socket_write($this->users[$k]['socket'],$new_message,strlen($new_message));
 $this-> ;users[$k]['hand']=true;
 return true;
 }
  function uncode($str){
    $mask = array();
    $data = '';
    $msg = unpack('H*',$str);
    $head = substr($msg[1],0,2);
    if (hexdec($head小贝) === 8) {
      $data = false;
    }else if (hexdec($head小贝) === 1){
      $mask[] = hexdec(substr($msg[1],4,2));
      $mask[] = hexdec(substr($msg[1],6,2));
      $mask[] = hexdec(substr($msg[1],8,2));
      $mask[] = hexdec(substr($msg[1],10,2));
      $s = 12;
      $e = strlen($msg[1])-2;
      $n = 0;
      for ($i=$s; $i<= $e; $i+= 2) {
        $data .= chr($mask[$n%4]^hexdec(substr($msg[1],$i,2)));
        $n++;
      }
    }
    return $data;
  }
    function code($msg){
      $msg = preg_replace(array('/r$/','/n$/','/rn$/',), '', $msg);
      $frame = array();
      $frame[0] = '81';
      $len = strlen($msg);
      $frame[1] = $len<16?'0'.dechex($len):dechex($len);
      $frame[2] = $this->ord_hex($msg);
      $data = implode('',$frame);
      return pack("H*", $data);
    }
    function ord_hex($data)  {
      $msg = '';
      $l = strlen($data);
      for ($i= 0; $i<$l; $i++) {
        $msg .= dechex(ord($data{$i}));
      }
      return $msg;
    }

    function idwrite($id,$t){//通过id推送信息
      if(!$this->users[$id]['socket']){return false;}//没有这个标示
      $t=$this->code($t);
      return socket_write($this->users[$id]['socket'],$t,strlen($t));
    }
    function write($k,$t){//通过标示推送信息
      $t=$this->code($t);
      return socket_write($k,$t,strlen($t));
    }
    function eventoutput($type,$event){//事件回调
      call_user_func($this->event,$type,$event);
    }
    function log($t){//控制台输出
      if($this->log){
        $t=$t."rn";
        fwrite(STDOUT, iconv('utf-8','gbk//IGNORE',$t));
      }
    }
}