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php网页版聊天软件实现代码

程序员文章站 2024-02-27 14:45:33
本文实例为大家分享了php匿名聊天室的具体实现代码，供大家参考，具体内容如下 1. index.html   

本文实例为大家分享了php匿名聊天室的具体实现代码，供大家参考，具体内容如下

1. index.html    

<html>
 <head>
  <title>聊天室</title>
  <meta charset="utf-8"/>
  <link href="http://libs.baidu.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="stylesheet">
  <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
  <script src="http://libs.baidu.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>
  <link href="./css/style.css" rel="stylesheet"/>
  <script>
   var maxid = 0;
   function showmessage() {
    //创建ajax对象
    var xhr = new xmlhttprequest();
    //监听
    xhr.onreadystatechange = function () {
     if (xhr.readystate === 4) {
      eval("var info=" + xhr.responsetext);
      var text = "";
      for (var i = 0; i < info.length; i++)
      {
       text += "<div class='alert alert-success'>" +
         "<span class='name'>" + info[i].send + ":</span>" +
         "<span class='message'>" + info[i].content + "</span>" +
         "<span>(" + info[i].time + ")</span>" +
         "</div>";
       maxid = info[i].id;
      }
 
      var old = document.getelementbyid("msg").innerhtml;
      document.getelementbyid("msg").innerhtml = old + text;
      document.getelementbyid("msg").scrolltop = document.getelementbyid("msg").scrollheight;
     }
    };
    //初始化
    xhr.open("get", "./action.php?maxid=" + maxid);
    //发送
    xhr.send();
   }
 
   $(document).ready(
     function ()
     {
      showmessage()
      self.setinterval("showmessage()", 2000);
     }
   );
   function send() {
    var postdata ="content="+document.getelementbyid('content').value;
    var xhr = new xmlhttprequest();
    xhr.open("post", "./add.php", true);
    //一定要写头信息不然服务器接收不到
    xhr.setrequestheader("content-type", "application/x-www-form-urlencoded");
    xhr.onreadystatechange = function () {
     var xmlhttpreq = xhr;
     if (xmlhttpreq.readystate == 4) {
      if (xmlhttpreq.status == 200) {
       document.getelementbyid('content').value="";
      }
     }
    };
    xhr.send(postdata);
   }
  </script>
 </head>
 <body>
 
  <div class="panel panel-default" id="main">
   <!--聊天室名字--> 
   <div class="panel-heading">
    <h3 class="panel-title">
     匿名者聊天室
    </h3>
   </div>
   <!--聊天室名字-->
   <!--聊天室消息框-->
   <div class="panel-body ">
    <div class="well no-bottom ">
     <!--     消息框样式-->
     <!--
     <div class="alert alert-success">成功！很好地完成了提交。</div>
     <div class="alert alert-info">信息！请注意这个信息。</div>
     <div class="alert alert-warning">警告！请不要提交。</div>
     <div class="alert alert-danger">错误！请进行一些更改。</div>
     -->
     <div id="msg" class="showmessage">
     </div>
     <!--聊天室消息框-->
     <div class="well" >
      <form role="form">
       <div class="form-group">
        <label for="name">发送消息</label>
        <textarea class="form-control" id="content" name="content"
           style="resize: none;font-family: microsoft yahei;" rows="3" >
        </textarea>
       </div>
       <div style="text-align: right">
        <button type="button" class="btn btn-primary" onclick="send()">
         <span class="glyphicon glyphicon-envelope"></span>
         发送
        </button>
       </div>
      </form>
     </div>
     <!--聊天室发送框-->
    </div>
   </div>
  </div>
 </body>
</html>

2. action.php 

<?php
 
$link = mysqli_connect('localhost', 'root', '123', 'test');
mysqli_query($link, 'set names utf8');
$info= array();
header("content-type: text/html; charset=utf-8");
$id=$_get['maxid'];
$data = mysqli_query($link, "select * from talk where id>$id");
while ($array = mysqli_fetch_assoc($data)) {
 $info[] = $array;
};
 
 echo json_encode($info);

3. chat.sql 

drop table if exists `talk`;
create table `talk` (
 `id` int(10) unsigned not null auto_increment comment 'id',
 `send` varchar(10) character set utf8 default null comment '发送者昵称',
 `ip` varchar(12) character set utf8 default null,
 `content` varchar(500) character set utf8 default null,
 `time` varchar(50) default null,
 primary key (`id`)
) engine=innodb auto_increment=52 default charset=utf8;

4. add.php

<?php
 
/**
 * @功能 将表单插入数据库
 */
$content=$_post['content'];
print_r($_post);
$time= date("y-m-d h:i:s", time(0));
$link = mysqli_connect('localhost', 'root', '123', 'test');
mysqli_query($link, 'set names utf8');
$ip = $_server["remote_addr"];
$sql="insert into talk values(null,'匿名者','$ip','$content','$time')";
$data = mysqli_query($link,$sql);
echo "$content";
if($data)
 echo "1";
 else
  echo "0";

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。

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