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
<!doctype html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"/><title>HTML5 websocket 网页聊天室 javascript php</title><style type="text/css">body,p{margin:0px; padding:0px; font-size:14px; color:#333; font-family:Arial, Helvetica, sans-serif;}#ltian,.rin{width:98%; margin:5px auto;}#ltian{border:1px #ccc solid;overflow-y:auto; overflow-x:hidden; position:relative;}#ct{margin-right:111px; height:100%;overflow-y:auto;overflow-x: hidden;}#us{width:110px; overflow-y:auto; overflow-x:hidden; float:right; border-left:1px #ccc solid; height:100%; background-color:#F1F1F1;}#us p{padding:3px 5px; color:#08C; line-height:20px; height:20px; cursor:pointer; overflow:hidden; white-space:nowrap; text-overflow:ellipsis;}#us p:hover,#us p:active,#us p.ck{background-color:#069; color:#FFF;}#us p.my:hover,#us p.my:active,#us p.my{color:#333;background-color:transparent;}button{float:right; width:80px; height:35px; font-size:18px;}input{width:100%; height:30px; padding:2px; line-height:20px; outline:none; border:solid 1px #CCC;}.rin p{margin-right:160px;}.rin span{float:right; padding:6px 5px 0px 5px; position:relative;}.rin span img{margin:0px 3px; cursor:pointer;}.rin span form{position:absolute; width:25px; height:25px; overflow:hidden; opacity:0; top:5px; right:5px;}.rin span input{width:180px; height:25px; margin-left:-160px; cursor:pointer}#ct p{padding:5px; line-height:20px;}#ct a{color:#069; cursor:pointer;}#ct span{color:#999; margin-right:10px;}.c2{color:#999;}.c3{background-color:#DBE9EC; padding:5px;}.qp{position:absolute; font-size:12px; color:#666; top:5px; right:130px; text-decoration:none; color:#069;}#ems{position:absolute; z-index:5; display:none; top:0px; left:0px; max-width:230px; background-color:#F1F1F1; border:solid 1px #CCC; padding:5px;}#ems img{width:44px; height:44px; border:solid 1px #FFF; cursor:pointer;}#ems img:hover,#ems img:active{border-color:#A4B7E3;}#ems a{color:#069; border-radius:2px; display:inline-block; margin:2px 5px; padding:1px 8px; text-decoration:none; background-color:#D5DFFD;}#ems a:hover,#ems a:active,#ems a.ck{color:#FFF; background-color:#069;}.tc{text-align:center; margin-top:5px;}</style></head><body><div id="ltian"> <div id="us" class="jb"></div> <div id="ct"></div> <a href="javascript:;" rel="external nofollow" rel="external nofollow" class="qp" onClick="this.parentNode.children[1].innerHTML=""">清屏</a></div><div class="rin"> <button id="sd">发送</button> <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> <p><input id="nrong"></p></div><div id="ems"><p></p><p class="tc"></p></div><script>if(typeof(WebSocket)=="undefined"){ alert("你的浏览器不支持 WebSocket ，推荐使用Google Chrome 或者 Mozilla Firefox"); }</script><script src="http://www.yxsss.com/ui/p/a.js" type="text/javascript"></script><script>(function(){ var key="all",mkey; var users={}; var url="ws://127.0.0.1:8000"; var so=false,n=false; var lus=A.$("us"),lct=A.$("ct"); function st(){ 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"]; var Arr2 = ["大灰狼","小白兔","母老虎","外星人","皮卡丘","HelloKitty","吴亦凡","薛之谦"]; var ran1 = Math.floor(Math.random() * Arr1.length + 1)-1; var ran2 = Math.floor(Math.random() * Arr2.length + 1)-1; var n=Arr1[ran1]+Arr2[ran2]; //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 //n=prompt("请给自己取一个霸气的名字："); //n=n.substr(0,16); //console.log(n); if(!n){ return ; } so=new WebSocket(url); so.onopen=function(){ if(so.readyState==1){ so.send("type=add&ming="+n); } } so.onclose=function(){ so=false; lct.appendChild(A.$$("<p class="c2">退出聊天室</p>")); } so.onmessage=function(msg){ eval("var da="+msg.data); var obj=false,c=false; if(da.type=="add"){ var obj=A.$$("<p>"+da.name+"</p>"); lus.appendChild(obj); cuser(obj,da.code); obj=A.$$("<p><span>["+da.time+"]</span>欢迎<a>"+da.name+"</a>加入</p>"); c=da.code; }else if(da.type=="madd"){ mkey=da.code; da.users.unshift({"code":"all","name":"大家"}); for(var i=0;i<da.users.length;i++){ var obj=A.$$("<p>"+da.users[i].name+"</p>"); lus.appendChild(obj); if(mkey!=da.users[i].code){ cuser(obj,da.users[i].code); }else{ obj.className="my"; document.title=da.users[i].name; } } obj=A.$$("<p><span>["+da.time+"]</span>欢迎"+da.name+"加入</p>"); users.all.className="ck"; } if(obj==false){ if(da.type=="rmove"){ var obj=A.$$("<p class="c2"><span>["+da.time+"]</span>"+users[da.nrong].innerHTML+"退出聊天室</p>"); lct.appendChild(obj); users[da.nrong].del(); delete users[da.nrong]; }else{ da.nrong=da.nrong.replace(/{\(d+)}/g,function(a,b){ return "<img src="sk/"+b+".jpg">"; }).replace(/^data:image/png;base64,.{50,}$/i,function(a){ return "<img src=""+a+"">"; }); //da.code 发信息人的code if(da.code1==mkey){ obj=A.$$("<p class="c3"><span>["+da.time+"]</span><a>"+users[da.code].innerHTML+"</a>对我说："+da.nrong+"</p>"); c=da.code; }else if(da.code==mkey){ if(da.code1!="all") obj=A.$$("<p class="c3"><span>["+da.time+"]</span>我对<a>"+users[da.code1].innerHTML+"</a>说："+da.nrong+"</p>"); else obj=A.$$("<p><span>["+da.time+"]</span>我对<a>"+users[da.code1].innerHTML+"</a>说："+da.nrong+"</p>"); c=da.code1; }else if(da.code==false){ obj=A.$$("<p><span>["+da.time+"]</span>"+da.nrong+"</p>"); }else if(da.code1){ obj=A.$$("<p><span>["+da.time+"]</span><a>"+users[da.code].innerHTML+"</a>对"+users[da.code1].innerHTML+"说："+da.nrong+"</p>"); c=da.code; } } } if(c){ obj.children[1].onclick=function(){ users[c].onclick(); } } lct.appendChild(obj); lct.scrollTop=Math.max(0,lct.scrollHeight-lct.offsetHeight); } } A.$("sd").onclick=function(){ if(!so){ return st(); } var da=A.$("nrong").value.trim(); if(da==""){ alert("内容不能为空"); return false; } A.$("nrong").value=""; so.send("nr="+esc(da)+"&key="+key); } A.$("nrong").onkeydown=function(e){ var e=e||event; if(e.keyCode==13){ A.$("sd").onclick(); } } function esc(da){ da=da.replace(/</g,"<").replace(/>/g,">").replace(/"/g,"""); return encodeURIComponent(da); } function cuser(t,code){ users[code]=t; t.onclick=function(){ t.parentNode.children.rcss("ck",""); t.rcss("","ck"); key=code; } } A.$("ltian").style.height=(document.documentElement.clientHeight - 70)+"px"; st(); var bq=A.$("imgbq"),ems=A.$("ems"); var l=80,r=4,c=5,s=0,p=Math.ceil(l/(r*c)); var pt="sk/"; bq.onclick=function(e){ var e=e||event; if(!so){ return st(); } ems.style.display="block"; document.onclick=function(){ gb(); } ct(); try{e.stopPropagation();}catch(o){} } for(var i=0;i<p;i++){ var a=A.$$("<a href="javascript:;" rel="external nofollow" rel="external nofollow" >"+(i+1)+"</a>"); ems.children[1].appendChild(a); ef(a,i); } ems.children[1].children[0].className="ck"; function ct(){ var wz=bq.weiz(); with(ems.style){ top=wz.y-242+"px"; left=wz.x+bq.offsetWidth-235+"px"; } } function ef(t,i){ t.onclick=function(e){ var e=e||event; s=i*r*c; ems.children[0].innerHTML=""; hh(); this.parentNode.children.rcss("ck",""); this.rcss("","ck"); try{e.stopPropagation();}catch(o){} } } function hh(){ var z=Math.min(l,s+r*c); for(var i=s;i<z;i++){ var a=A.$$("<img src=""+pt+i+".jpg">"); hh1(a,i); ems.children[0].appendChild(a); } ct(); } function hh1(t,i){ t.onclick=function(e){ var e=e||event; A.$("nrong").value+="{\"+i+"}"; if(!e.ctrlKey){ gb(); } try{e.stopPropagation();}catch(o){} } } function gb(){ ems.style.display=""; A.$("nrong").focus(); document.onclick=""; } hh(); A.on(window,"resize",function(){ A.$("ltian").style.height=(document.documentElement.clientHeight - 70)+"px"; ct(); }) var fimg=A.$("upimg"); var img=new Image(); var dw=400,dh=300; A.on(fimg,"change",function(ev){ if(!so){ st(); return false; } if(key=="all"){ alert("由于资源限制 发图只能私聊"); return false; } var f=ev.target.files[0]; if(f.type.match("image.*")){ var r = new FileReader(); r.onload = function(e){ img.setAttribute("src",e.target.result); }; r.readAsDataURL(f); } }); img.onload=function(){ ih=img.height,iw=img.width; if(iw/ih > dw/dh && iw > dw){ ih=ih/iw*dw; iw=dw; }else if(ih > dh){ iw=iw/ih*dh; ih=dh; } var rc = A.$$("canvas"); var ct = rc.getContext("2d"); rc.width=iw; rc.height=ih; ct.drawImage(img,0,0,iw,ih); var da=rc.toDataURL(); so.send("nr="+esc(da)+"&key="+key); } })();</script></body></html>后端代码：webserver.php
<?phperror_reporting(E_ALL ^ E_NOTICE);ob_implicit_flush();$sk=new Sock("127.0.0.1",8000);$sk->run();class Sock{ public $sockets; public $users; public $master; private $sda=array();//已接收的数据 private $slen=array();//数据总长度 private $sjen=array();//接收数据的长度 private $ar=array();//加密key private $n=array(); public function __construct($address, $port){ $this->master=$this->WebSocket($address, $port); $this->sockets=array($this->master); } function run(){ while(true){ $changes=$this->sockets; $write=NULL; $except=NULL; socket_select($changes,$write,$except,NULL); foreach($changes as $sock){ if($sock==$this->master){ $client=socket_accept($this->master); $key=uniqid(); $this->sockets[]=$client; $this->users[$key]=array( "socket"=>$client, "shou"=>false ); }else{ $len=0; $buffer=""; do{ $l=socket_recv($sock,$buf,1000,0); $len+=$l; $buffer.=$buf; }while($l==1000); $k=$this->search($sock); if($len<7){ $this->send2($k); continue; } if(!$this->users[$k]["shou"]){ $this->woshou($k,$buffer); }else{ $buffer = $this->uncode($buffer,$k); if($buffer==false){ continue; } $this->send($k,$buffer); } } } } } function close($k){ socket_close($this->users[$k]["socket"]); unset($this->users[$k]); $this->sockets=array($this->master); foreach($this->users as $v){ $this->sockets[]=$v["socket"]; } $this->e("key:$k close"); } function search($sock){ foreach ($this->users as $k=>$v){ if($sock==$v["socket"]) return $k; } return false; } function WebSocket($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->e("Server Started : ".date("Y-m-d H:i:s")); $this->e("Listening on : ".$address." port ".$port); return $server; } function woshou($k,$buffer){ $buf = substr($buffer,strpos($buffer,"Sec-WebSocket-Key:")+18); $key = trim(substr($buf,0,strpos($buf,""))); $new_key = base64_encode(sha1($key."258EAFA5-E914-47DA-95CA-C5AB0DC85B11",true)); $new_message = "HTTP/1.1 101 Switching Protocols"; $new_message .= "Upgrade: websocket"; $new_message .= "Sec-WebSocket-Version: 13"; $new_message .= "Connection: Upgrade"; $new_message .= "Sec-WebSocket-Accept: " . $new_key . ""; socket_write($this->users[$k]["socket"],$new_message,strlen($new_message)); $this->users[$k]["shou"]=true; return true; } function uncode($str,$key){ $mask = array(); $data = ""; $msg = unpack("H*",$str); $head = substr($msg[1],0,2); if ($head == "81" && !isset($this->slen[$key])) { $len=substr($msg[1],2,2); $len=hexdec($len); if(substr($msg[1],2,2)=="fe"){ $len=substr($msg[1],4,4); $len=hexdec($len); $msg[1]=substr($msg[1],4); }else if(substr($msg[1],2,2)=="ff"){ $len=substr($msg[1],4,16); $len=hexdec($len); $msg[1]=substr($msg[1],16); } $mask[] = hexdec(substr($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; $n=0; }else if($this->slen[$key] > 0){ $len=$this->slen[$key]; $mask=$this->ar[$key]; $n=$this->n[$key]; $s = 0; } $e = strlen($msg[1])-2; for ($i=$s; $i<= $e; $i+= 2) { $data .= chr($mask[$n%4]^hexdec(substr($msg[1],$i,2))); $n++; } $dlen=strlen($data); if($len > 255 && $len > $dlen+intval($this->sjen[$key])){ $this->ar[$key]=$mask; $this->slen[$key]=$len; $this->sjen[$key]=$dlen+intval($this->sjen[$key]); $this->sda[$key]=$this->sda[$key].$data; $this->n[$key]=$n; return false; }else{ unset($this->ar[$key],$this->slen[$key],$this->sjen[$key],$this->n[$key]); $data=$this->sda[$key].$data; unset($this->sda[$key]); return $data; } } function code($msg){ $frame = array(); $frame[0] = "81"; $len = strlen($msg); if($len < 126){ $frame[1] = $len<16?"0".dechex($len):dechex($len); }else if($len < 65025){ $s=dechex($len); $frame[1]="7e".str_repeat("0",4-strlen($s)).$s; }else{ $s=dechex($len); $frame[1]="7f".str_repeat("0",16-strlen($s)).$s; } $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 $msg; } //用户加入 function send($k,$msg){ parse_str($msg,$g); $ar=array(); if($g["type"]=="add"){ $this->users[$k]["name"]=$g["ming"]; $ar["type"]="add"; $ar["name"]=$g["ming"]; $key="all"; }else{ $ar["nrong"]=$g["nr"]; $key=$g["key"]; } $this->send1($k,$ar,$key); } function getusers(){ $ar=array(); foreach($this->users as $k=>$v){ $ar[]=array("code"=>$k,"name"=>$v["name"]); } return $ar; } //$k 发信息人的code $key接受人的 code function send1($k,$ar,$key="all"){ $ar["code1"]=$key; $ar["code"]=$k; $ar["time"]=date("m-d H:i:s"); $str = $this->code(json_encode($ar)); if($key=="all"){ $users=$this->users; if($ar["type"]=="add"){ $ar["type"]="madd"; $ar["users"]=$this->getusers(); $str1 = $this->code(json_encode($ar)); socket_write($users[$k]["socket"],$str1,strlen($str1)); unset($users[$k]); } foreach($users as $v){ socket_write($v["socket"],$str,strlen($str)); } }else{ socket_write($this->users[$k]["socket"],$str,strlen($str)); socket_write($this->users[$key]["socket"],$str,strlen($str)); } } //用户退出 function send2($k){ $this->close($k); $ar["type"]="rmove"; $ar["nrong"]=$k; $this->send1(false,$ar,"all"); } function e($str){ //$path=dirname(__FILE__)."/log.txt"; $str=$str.""; //error_log($str,3,$path); echo iconv("utf-8","gbk//IGNORE",$str); }}?>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
然后使用命令行工具cd进这个目录，运行命令：
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网页设计。
