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php+webSoket实现聊天室示例代码（附源码）

时间：2021-07-01 10:21:17 帮助过：30人阅读

最近在公司利用直播间搭建一个图文直播间时正好要用到chatsever，研究了一下html5的websocket 实现了双向通信，根据前人的经验折腾了几天弄了个聊天室，实现了发送图片，发送QQ表情，群聊私聊等功能，特地分享给各位新手参考学习，大牛可以忽略。

前端：client.html

  1. <!doctype html>
  2. <html>
  3. <head>
  4. <meta charset="utf-8">
  5. <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"/>
  6. <title>HTML5 websocket 网页聊天室 javascript php</title>
  7. <style type="text/css">
  8. body,p{margin:0px; padding:0px; font-size:14px; color:#333; font-family:Arial, Helvetica, sans-serif;}
  9. #ltian,.rin{width:98%; margin:5px auto;}
  10. #ltian{border:1px #ccc solid;overflow-y:auto; overflow-x:hidden; position:relative;}
  11. #ct{margin-right:111px; height:100%;overflow-y:auto;overflow-x: hidden;}
  12. #us{width:110px; overflow-y:auto; overflow-x:hidden; float:right; border-left:1px #ccc solid; height:100%; background-color:#F1F1F1;}
  13. #us p{padding:3px 5px; color:#08C; line-height:20px; height:20px; cursor:pointer; overflow:hidden; white-space:nowrap; text-overflow:ellipsis;}
  14. #us p:hover,#us p:active,#us p.ck{background-color:#069; color:#FFF;}
  15. #us p.my:hover,#us p.my:active,#us p.my{color:#333;background-color:transparent;}
  16. button{float:right; width:80px; height:35px; font-size:18px;}
  17. input{width:100%; height:30px; padding:2px; line-height:20px; outline:none; border:solid 1px #CCC;}
  18. .rin p{margin-right:160px;}
  19. .rin span{float:right; padding:6px 5px 0px 5px; position:relative;}
  20. .rin span img{margin:0px 3px; cursor:pointer;}
  21. .rin span form{position:absolute; width:25px; height:25px; overflow:hidden; opacity:0; top:5px; right:5px;}
  22. .rin span input{width:180px; height:25px; margin-left:-160px; cursor:pointer}
  23. #ct p{padding:5px; line-height:20px;}
  24. #ct a{color:#069; cursor:pointer;}
  25. #ct span{color:#999; margin-right:10px;}
  26. .c2{color:#999;}
  27. .c3{background-color:#DBE9EC; padding:5px;}
  28. .qp{position:absolute; font-size:12px; color:#666; top:5px; right:130px; text-decoration:none; color:#069;}
  29. #ems{position:absolute; z-index:5; display:none; top:0px; left:0px; max-width:230px; background-color:#F1F1F1; border:solid 1px #CCC; padding:5px;}
  30. #ems img{width:44px; height:44px; border:solid 1px #FFF; cursor:pointer;}
  31. #ems img:hover,#ems img:active{border-color:#A4B7E3;}
  32. #ems a{color:#069; border-radius:2px; display:inline-block; margin:2px 5px; padding:1px 8px; text-decoration:none; background-color:#D5DFFD;}
  33. #ems a:hover,#ems a:active,#ems a.ck{color:#FFF; background-color:#069;}
  34. .tc{text-align:center; margin-top:5px;}
  35. </style>
  36. </head>
  37. <body>
  38. <div id="ltian">
  39.  <div id="us" class="jb"></div>
  40.  <div id="ct"></div>
  41.  <a href="javascript:;" rel="external nofollow" rel="external nofollow" class="qp" onClick="this.parentNode.children[1].innerHTML=''">清屏</a>
  42. </div>
  43. <div class="rin">
  44.  <button id="sd">发送</button>
  45.  <span><img src="http://www.yxsss.com/ui/sk/t.png" title="表情" id="imgbq"><img src="http://www.yxsss.com/ui/sk/e.png" title="上传图片"><form><input type="file" title="上传图片" id="upimg"></form></span>
  46.  <p><input id="nrong"></p>
  47. </div>
  48. <div id="ems"><p></p><p class="tc"></p></div>
  49. <script>
  50. if(typeof(WebSocket)=='undefined'){
  51.  alert('你的浏览器不支持 WebSocket ，推荐使用Google Chrome 或者 Mozilla Firefox'); 
  52. }
  53. </script>
  54. <script src="http://www.yxsss.com/ui/p/a.js" type="text/javascript"></script>
  55. <script>
  56. (function(){
  57.  var key='all',mkey;
  58.  var users={};
  59.  var url='ws://127.0.0.1:8000';
  60.  var so=false,n=false;
  61.  var lus=A.$('us'),lct=A.$('ct');
  62.  function st(){
  63.   var Arr1 = ["聪明的","狡猾的","可爱的","美丽的","狡猾的","善良的","帅气的","逗比的"]; 
  64.   var Arr2 = ["大灰狼","小白兔","母老虎","外星人","皮卡丘","HelloKitty","吴亦凡","薛之谦"]; 
  65.   var ran1 = Math.floor(Math.random() * Arr1.length + 1)-1; 
  66.   var ran2 = Math.floor(Math.random() * Arr2.length + 1)-1; 
  67.   var n=Arr1[ran1]+Arr2[ran2]; 
  68.   //以上五行是用来随机生成用户昵称的方法，参考一下 ，如果想自定义用户名可以将以上五行注释，然后以下两行取消注释
  69.   //n=prompt('请给自己取一个霸气的名字：');
  70.   //n=n.substr(0,16);
  71.   //console.log(n);
  72.   if(!n){
  73.    return ; 
  74.   }
  75.   so=new WebSocket(url);
  76.   so.onopen=function(){
  77.    if(so.readyState==1){
  78.     so.send('type=add&ming='+n);
  79.    }
  80.   }
  81.   
  82.   so.onclose=function(){
  83.    so=false;
  84.    lct.appendChild(A.$$('<p class="c2">退出聊天室</p>'));
  85.   }
  86.   
  87.   so.onmessage=function(msg){
  88.    eval('var da='+msg.data);
  89.    var obj=false,c=false;
  90.    if(da.type=='add'){
  91.     var obj=A.$$('<p>'+da.name+'</p>');
  92.     lus.appendChild(obj);
  93.     cuser(obj,da.code);
  94.     obj=A.$$('<p><span>['+da.time+']</span>欢迎<a>'+da.name+'</a>加入</p>');
  95.     c=da.code;
  96.    }else if(da.type=='madd'){
  97.     mkey=da.code;
  98.     da.users.unshift({'code':'all','name':'大家'});
  99.     for(var i=0;i<da.users.length;i++){
  100.      var obj=A.$$('<p>'+da.users[i].name+'</p>');
  101.      lus.appendChild(obj);
  102.      if(mkey!=da.users[i].code){
  103.       cuser(obj,da.users[i].code);
  104.      }else{
  105.       obj.className='my';
  106.       document.title=da.users[i].name;
  107.      }
  108.     }
  109.     obj=A.$$('<p><span>['+da.time+']</span>欢迎'+da.name+'加入</p>');
  110.     users.all.className='ck';
  111.    }
  112.    
  113.    if(obj==false){
  114.     if(da.type=='rmove'){
  115.      var obj=A.$$('<p class="c2"><span>['+da.time+']</span>'+users[da.nrong].innerHTML+'退出聊天室</p>');
  116.      lct.appendChild(obj);
  117.      users[da.nrong].del();
  118.      delete users[da.nrong];
  119.     }else{
  120.      da.nrong=da.nrong.replace(/{\\(\d+)}/g,function(a,b){
  121.       return '<img src="sk/'+b+'.jpg">';
  122.      }).replace(/^data\:image\/png;base64\,.{50,}$/i,function(a){
  123.       return '<img src="'+a+'">';
  124.      });
  125.      //da.code 发信息人的code
  126.      if(da.code1==mkey){
  127.       obj=A.$$('<p class="c3"><span>['+da.time+']</span><a>'+users[da.code].innerHTML+'</a>对我说：'+da.nrong+'</p>');
  128.       c=da.code;
  129.      }else if(da.code==mkey){
  130.       if(da.code1!='all')
  131.       obj=A.$$('<p class="c3"><span>['+da.time+']</span>我对<a>'+users[da.code1].innerHTML+'</a>说：'+da.nrong+'</p>');
  132.       else
  133.       obj=A.$$('<p><span>['+da.time+']</span>我对<a>'+users[da.code1].innerHTML+'</a>说：'+da.nrong+'</p>');
  134.       c=da.code1;
  135.      }else if(da.code==false){
  136.       obj=A.$$('<p><span>['+da.time+']</span>'+da.nrong+'</p>');
  137.      }else if(da.code1){
  138.       obj=A.$$('<p><span>['+da.time+']</span><a>'+users[da.code].innerHTML+'</a>对'+users[da.code1].innerHTML+'说：'+da.nrong+'</p>');
  139.       c=da.code;
  140.      }
  141.     }
  142.    }
  143.    if(c){
  144.      obj.children[1].onclick=function(){
  145.       users[c].onclick();
  146.      }
  147.     }
  148.    lct.appendChild(obj);
  149.    lct.scrollTop=Math.max(0,lct.scrollHeight-lct.offsetHeight);
  150.   }
  151.  }
  152.  A.$('sd').onclick=function(){
  153.   if(!so){
  154.     return st();
  155.   }
  156.   var da=A.$('nrong').value.trim();
  157.   if(da==''){
  158.    alert('内容不能为空');
  159.    return false; 
  160.   }
  161.   A.$('nrong').value='';
  162.   so.send('nr='+esc(da)+'&key='+key);
  163.  }
  164.  A.$('nrong').onkeydown=function(e){
  165.   var e=e||event;
  166.   if(e.keyCode==13){
  167.    A.$('sd').onclick();
  168.   }
  169.  }
  170.  function esc(da){
  171.   da=da.replace(/</g,'<').replace(/>/g,'>').replace(/\"/g,'"');
  172.   return encodeURIComponent(da);
  173.  }
  174.  function cuser(t,code){
  175.   users[code]=t;
  176.   t.onclick=function(){
  177.    t.parentNode.children.rcss('ck','');
  178.    t.rcss('','ck');
  179.    key=code;
  180.   }
  181.  }
  182.  A.$('ltian').style.height=(document.documentElement.clientHeight - 70)+'px';
  183.  st();
  184.  
  185.  var bq=A.$('imgbq'),ems=A.$('ems');
  186.  var l=80,r=4,c=5,s=0,p=Math.ceil(l/(r*c));
  187.  var pt='sk/';
  188.  bq.onclick=function(e){
  189.   var e=e||event;
  190.   if(!so){
  191.     return st();
  192.   }
  193.   ems.style.display='block';
  194.   document.onclick=function(){
  195.    gb(); 
  196.   }
  197.   ct();
  198.   try{e.stopPropagation();}catch(o){}
  199.  }
  200.  
  201.  for(var i=0;i<p;i++){
  202.   var a=A.$$('<a href="javascript:;" rel="external nofollow" rel="external nofollow" >'+(i+1)+'</a>');
  203.   ems.children[1].appendChild(a);
  204.   ef(a,i);
  205.  }
  206.  ems.children[1].children[0].className='ck';
  207.  
  208.  function ct(){
  209.   var wz=bq.weiz();
  210.   with(ems.style){
  211.    top=wz.y-242+'px';
  212.    left=wz.x+bq.offsetWidth-235+'px';
  213.   }
  214.  }
  215.   
  216.  function ef(t,i){
  217.   t.onclick=function(e){
  218.    var e=e||event;
  219.    s=i*r*c;
  220.    ems.children[0].innerHTML='';
  221.    hh();
  222.    this.parentNode.children.rcss('ck','');
  223.    this.rcss('','ck');
  224.    try{e.stopPropagation();}catch(o){}
  225.   }
  226.  }
  227.  
  228.  function hh(){
  229.   var z=Math.min(l,s+r*c);
  230.   for(var i=s;i<z;i++){
  231.    var a=A.$$('<img src="'+pt+i+'.jpg">');
  232.    hh1(a,i);
  233.    ems.children[0].appendChild(a);
  234.   }
  235.   ct();
  236.  }
  237.  
  238.  function hh1(t,i){
  239.   t.onclick=function(e){
  240.    var e=e||event;
  241.    A.$('nrong').value+='{\\'+i+'}';
  242.    if(!e.ctrlKey){
  243.     gb();
  244.    }
  245.    try{e.stopPropagation();}catch(o){}
  246.   }
  247.  }
  248.  
  249.  function gb(){
  250.   ems.style.display='';
  251.   A.$('nrong').focus();
  252.   document.onclick='';
  253.  }
  254.  hh();
  255.  A.on(window,'resize',function(){
  256.   A.$('ltian').style.height=(document.documentElement.clientHeight - 70)+'px';
  257.   ct();
  258.  }) 
  259.  var fimg=A.$('upimg');
  260.  var img=new Image();
  261.  var dw=400,dh=300;
  262.  A.on(fimg,'change',function(ev){
  263.   if(!so){
  264.    st();
  265.    return false;
  266.   }
  267.   if(key=='all'){
  268.    alert('由于资源限制 发图只能私聊');
  269.    return false; 
  270.   }
  271.   var f=ev.target.files[0];
  272.   if(f.type.match('image.*')){
  273.    var r = new FileReader();
  274.    r.onload = function(e){
  275.     img.setAttribute('src',e.target.result);
  276.    };
  277.    r.readAsDataURL(f);
  278.   }
  279.  });
  280.  img.onload=function(){
  281.   ih=img.height,iw=img.width;
  282.   if(iw/ih > dw/dh && iw > dw){
  283.    ih=ih/iw*dw;
  284.    iw=dw;
  285.   }else if(ih > dh){
  286.    iw=iw/ih*dh;
  287.    ih=dh;
  288.   }
  289.   var rc = A.$$('canvas');
  290.   var ct = rc.getContext('2d');
  291.   rc.width=iw;
  292.   rc.height=ih;
  293.   ct.drawImage(img,0,0,iw,ih);
  294.   var da=rc.toDataURL();
  295.   so.send('nr='+esc(da)+'&key='+key);
  296.  }
  297.  
  298. })();
  299. </script>
  300. </body>
  301. </html>

后端代码：webserver.php

  1. <?php
  2. error_reporting(E_ALL ^ E_NOTICE);
  3. ob_implicit_flush();
  4. $sk=new Sock('127.0.0.1',8000);
  5. $sk->run();
  6. class Sock{
  7.  public $sockets;
  8.  public $users;
  9.  public $master;
  10.  
  11.  private $sda=array();//已接收的数据
  12.  private $slen=array();//数据总长度
  13.  private $sjen=array();//接收数据的长度
  14.  private $ar=array();//加密key
  15.  private $n=array();
  16.  
  17.  public function __construct($address, $port){
  18.  $this->master=$this->WebSocket($address, $port);
  19.  $this->sockets=array($this->master);
  20.  }
  21.  
  22.  
  23.  function run(){
  24.  while(true){
  25.  $changes=$this->sockets;
  26.  $write=NULL;
  27.  $except=NULL;
  28.  socket_select($changes,$write,$except,NULL);
  29.  foreach($changes as $sock){
  30.  if($sock==$this->master){
  31.   $client=socket_accept($this->master);
  32.   $key=uniqid();
  33.   $this->sockets[]=$client;
  34.   $this->users[$key]=array(
  35.   'socket'=>$client,
  36.   'shou'=>false
  37.   );
  38.  }else{
  39.   $len=0;
  40.   $buffer='';
  41.   do{
  42.   $l=socket_recv($sock,$buf,1000,0);
  43.   $len+=$l;
  44.   $buffer.=$buf;
  45.   }while($l==1000);
  46.   $k=$this->search($sock);
  47.   if($len<7){
  48.   $this->send2($k);
  49.   continue;
  50.   }
  51.   if(!$this->users[$k]['shou']){
  52.   $this->woshou($k,$buffer);
  53.   }else{
  54.   $buffer = $this->uncode($buffer,$k);
  55.   if($buffer==false){
  56.   continue;
  57.   }
  58.   $this->send($k,$buffer);
  59.   }
  60.  }
  61.  }
  62.  
  63.  }
  64.  
  65.  }
  66.  
  67.  function close($k){
  68.  socket_close($this->users[$k]['socket']);
  69.  unset($this->users[$k]);
  70.  $this->sockets=array($this->master);
  71.  foreach($this->users as $v){
  72.  $this->sockets[]=$v['socket'];
  73.  }
  74.  $this->e("key:$k close");
  75.  }
  76.  
  77.  function search($sock){
  78.  foreach ($this->users as $k=>$v){
  79.  if($sock==$v['socket'])
  80.  return $k;
  81.  }
  82.  return false;
  83.  }
  84.  
  85.  function WebSocket($address,$port){
  86.  $server = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
  87.  socket_set_option($server, SOL_SOCKET, SO_REUSEADDR, 1);
  88.  socket_bind($server, $address, $port);
  89.  socket_listen($server);
  90.  $this->e('Server Started : '.date('Y-m-d H:i:s'));
  91.  $this->e('Listening on : '.$address.' port '.$port);
  92.  return $server;
  93.  }
  94.  
  95.  
  96.  function woshou($k,$buffer){
  97.  $buf = substr($buffer,strpos($buffer,'Sec-WebSocket-Key:')+18);
  98.  $key = trim(substr($buf,0,strpos($buf,"\r\n")));
  99.  
  100.  $new_key = base64_encode(sha1($key."258EAFA5-E914-47DA-95CA-C5AB0DC85B11",true));
  101.  
  102.  $new_message = "HTTP/1.1 101 Switching Protocols\r\n";
  103.  $new_message .= "Upgrade: websocket\r\n";
  104.  $new_message .= "Sec-WebSocket-Version: 13\r\n";
  105.  $new_message .= "Connection: Upgrade\r\n";
  106.  $new_message .= "Sec-WebSocket-Accept: " . $new_key . "\r\n\r\n";
  107.  
  108.  socket_write($this->users[$k]['socket'],$new_message,strlen($new_message));
  109.  $this->users[$k]['shou']=true;
  110.  return true;
  111.  
  112.  }
  113.  
  114.  function uncode($str,$key){
  115.  $mask = array(); 
  116.  $data = ''; 
  117.  $msg = unpack('H*',$str);
  118.  $head = substr($msg[1],0,2); 
  119.  if ($head == '81' && !isset($this->slen[$key])) { 
  120.  $len=substr($msg[1],2,2);
  121.  $len=hexdec($len);
  122.  if(substr($msg[1],2,2)=='fe'){
  123.  $len=substr($msg[1],4,4);
  124.  $len=hexdec($len);
  125.  $msg[1]=substr($msg[1],4);
  126.  }else if(substr($msg[1],2,2)=='ff'){
  127.  $len=substr($msg[1],4,16);
  128.  $len=hexdec($len);
  129.  $msg[1]=substr($msg[1],16);
  130.  }
  131.  $mask[] = hexdec(substr($msg[1],4,2)); 
  132.  $mask[] = hexdec(substr($msg[1],6,2)); 
  133.  $mask[] = hexdec(substr($msg[1],8,2)); 
  134.  $mask[] = hexdec(substr($msg[1],10,2));
  135.  $s = 12;
  136.  $n=0;
  137.  }else if($this->slen[$key] > 0){
  138.  $len=$this->slen[$key];
  139.  $mask=$this->ar[$key];
  140.  $n=$this->n[$key];
  141.  $s = 0;
  142.  }
  143.  
  144.  $e = strlen($msg[1])-2;
  145.  for ($i=$s; $i<= $e; $i+= 2) { 
  146.  $data .= chr($mask[$n%4]^hexdec(substr($msg[1],$i,2))); 
  147.  $n++; 
  148.  } 
  149.  $dlen=strlen($data);
  150.  
  151.  if($len > 255 && $len > $dlen+intval($this->sjen[$key])){
  152.  $this->ar[$key]=$mask;
  153.  $this->slen[$key]=$len;
  154.  $this->sjen[$key]=$dlen+intval($this->sjen[$key]);
  155.  $this->sda[$key]=$this->sda[$key].$data;
  156.  $this->n[$key]=$n;
  157.  return false;
  158.  }else{
  159.  unset($this->ar[$key],$this->slen[$key],$this->sjen[$key],$this->n[$key]);
  160.  $data=$this->sda[$key].$data;
  161.  unset($this->sda[$key]);
  162.  return $data;
  163.  }
  164.  
  165.  }
  166.  
  167.  
  168.  function code($msg){
  169.  $frame = array(); 
  170.  $frame[0] = '81'; 
  171.  $len = strlen($msg);
  172.  if($len < 126){
  173.  $frame[1] = $len<16?'0'.dechex($len):dechex($len);
  174.  }else if($len < 65025){
  175.  $s=dechex($len);
  176.  $frame[1]='7e'.str_repeat('0',4-strlen($s)).$s;
  177.  }else{
  178.  $s=dechex($len);
  179.  $frame[1]='7f'.str_repeat('0',16-strlen($s)).$s;
  180.  }
  181.  $frame[2] = $this->ord_hex($msg); 
  182.  $data = implode('',$frame); 
  183.  return pack("H*", $data); 
  184.  }
  185.  
  186.  function ord_hex($data) { 
  187.  $msg = ''; 
  188.  $l = strlen($data); 
  189.  for ($i= 0; $i<$l; $i++) { 
  190.  $msg .= dechex(ord($data{$i})); 
  191.  } 
  192.  return $msg; 
  193.  }
  194.  
  195.  //用户加入
  196.  function send($k,$msg){
  197.  parse_str($msg,$g);
  198.  $ar=array();
  199.  if($g['type']=='add'){
  200.  $this->users[$k]['name']=$g['ming'];
  201.  $ar['type']='add';
  202.  $ar['name']=$g['ming'];
  203.  $key='all';
  204.  }else{
  205.  $ar['nrong']=$g['nr'];
  206.  $key=$g['key'];
  207.  }
  208.  $this->send1($k,$ar,$key);
  209.  }
  210.  
  211.  function getusers(){
  212.  $ar=array();
  213.  foreach($this->users as $k=>$v){
  214.  $ar[]=array('code'=>$k,'name'=>$v['name']);
  215.  }
  216.  return $ar;
  217.  }
  218.  
  219.  //$k 发信息人的code $key接受人的 code
  220.  function send1($k,$ar,$key='all'){
  221.  $ar['code1']=$key;
  222.  $ar['code']=$k;
  223.  $ar['time']=date('m-d H:i:s');
  224.  $str = $this->code(json_encode($ar));
  225.  if($key=='all'){
  226.  $users=$this->users;
  227.  if($ar['type']=='add'){
  228.  $ar['type']='madd';
  229.  $ar['users']=$this->getusers();
  230.  $str1 = $this->code(json_encode($ar));
  231.  socket_write($users[$k]['socket'],$str1,strlen($str1));
  232.  unset($users[$k]);
  233.  }
  234.  foreach($users as $v){
  235.  socket_write($v['socket'],$str,strlen($str));
  236.  }
  237.  }else{
  238.  socket_write($this->users[$k]['socket'],$str,strlen($str));
  239.  socket_write($this->users[$key]['socket'],$str,strlen($str));
  240.  }
  241.  }
  242.  
  243.  //用户退出
  244.  function send2($k){
  245.  $this->close($k);
  246.  $ar['type']='rmove';
  247.  $ar['nrong']=$k;
  248.  $this->send1(false,$ar,'all');
  249.  }
  250.  
  251.  function e($str){
  252.  //$path=dirname(__FILE__).'/log.txt';
  253.  $str=$str."\n";
  254.  //error_log($str,3,$path);
  255.  echo iconv('utf-8','gbk//IGNORE',$str);
  256.  }
  257. }
  258. ?>

很多童鞋反应用我的源码项目还是报错，不能运行，说下详细安装部署步骤。

首先把下载下来的源代码解压放到web目录下，比如我的就是applications/Xampp/xamppfiles/htdocs/phpb/websocket,

路径

路径

然后使用命令行工具cd进这个目录，运行命令：

  1. php websocket.php

运行效果图：

命令行操作

接着打开Apache服务器，在浏览器访问http://localhost/phpb/websocket/client.html

运行效果图：

源码链接：webSoket-php-chatsever_jb51.rar

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脚本之家。

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