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php網頁版聊天軟體的實作方法

墨辰丷原創: 2018-06-01 15:32:362747瀏覽

這篇文章主要介紹了php網頁版聊天軟體實現程式碼，可以實現匿名聊天，有興趣的小夥伴可以參考一下

#具體內容如下

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 += "<p class=&#39;alert alert-success&#39;>" +
         "<span class=&#39;name&#39;>" + info[i].send + ":</span>" +
         "<span class=&#39;message&#39;>" + info[i].content + "</span>" +
         "<span>(" + info[i].time + ")</span>" +
         "</p>";
       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(&#39;content&#39;).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(&#39;content&#39;).value="";
      }
     }
    };
    xhr.send(postData);
   }
  </script>
 </head>
 <body>
 
  <p class="panel panel-default" id="main">
   <!--聊天室名字--> 
   <p class="panel-heading">
    <h3 class="panel-title">
     匿名者聊天室
    </h3>
   </p>
   <!--聊天室名字-->
   <!--聊天室消息框-->
   <p class="panel-body ">
    <p class="well no-bottom ">
     <!--     消息框样式-->
     <!--
     <p class="alert alert-success">成功！很好地完成了提交。</p>
     <p class="alert alert-info">信息！请注意这个信息。</p>
     <p class="alert alert-warning">警告！请不要提交。</p>
     <p class="alert alert-danger">错误！请进行一些更改。</p>
     -->
     <p id="msg" class="showmessage">
     </p>
     <!--聊天室消息框-->
     <p class="well" >
      <form role="form">
       <p 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>
       </p>
       <p style="text-align: right">
        <button type="button" class="btn btn-primary" onclick="send()">
         <span class="glyphicon glyphicon-envelope"></span>
         发送
        </button>
       </p>
      </form>
     </p>
     <!--聊天室发送框-->
    </p>
   </p>
  </p>
 </body>
</html>

#2. action.php

<?php
 
$link = mysqli_connect(&#39;localhost&#39;, &#39;root&#39;, &#39;123&#39;, &#39;test&#39;);
mysqli_query($link, &#39;set names utf8&#39;);
$info= array();
header("Content-type: text/html; charset=utf-8");
$id=$_GET[&#39;maxid&#39;];
$data = mysqli_query($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 &#39;id&#39;,
 `send` varchar(10) CHARACTER SET utf8 DEFAULT NULL COMMENT &#39;发送者昵称&#39;,
 `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[&#39;content&#39;];
print_r($_POST);
$time= date("Y-m-d H:i:s", time(0));
$link = mysqli_connect(&#39;localhost&#39;, &#39;root&#39;, &#39;123&#39;, &#39;test&#39;);
mysqli_query($link, &#39;set names utf8&#39;);
$ip = $_SERVER["REMOTE_ADDR"];
$sql="INSERT INTO talk VALUES(NULL,&#39;匿名者&#39;,&#39;$ip&#39;,&#39;$content&#39;,&#39;$time&#39;)";
$data = mysqli_query($link,$sql);
echo "$content";
if($data)
 echo "1";
 else
  echo "0";

#總結：以上就是這篇文章的全部內容，希望能對大家的學習有所幫助。

php網頁版聊天軟體的實作方法

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