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php+ajax实现的点击浏览量加1_PHP

WBOY
WBOYOriginal
2016-06-01 14:35:08993browse

下面就分享一段相对完整的能够在实际应用中派上用场的代码，此代码是ajax结合php代码实现的。

一.ajax代码如下:

<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<title>ajax实现浏览量点击增加</title>
<script type="text/javascript">
var xmlhttp=false;
function add(){
 try{
  xmlhttp= new XMLHttpRequest;
 }
 catch(e){
  xmlhttp= new ActiveXObject("Microsoft.XMLHTTP");
 }
 
 xmlhttp.open('GET','count.php&#63;a=a',false);
 xmlhttp.onreadystatechange=func;
 xmlhttp.send(null);
}
 
function func(){
 if(xmlhttp.readyState==4){
  var msg=xmlhttp.responseText;
  var tt=document.getElementById("num");
  tt.innerHTML=msg;
 }
}
</script>
</head>
<body>
当前页面数据库中访问次数:<div id='num'></div>
<input type="button" value="增加次数" >
</body>
</html>

二.php代码:

<&#63;php
 mysql_connect('localhost','root','');
 mysql_selectdb('click');
 $rs=mysql_query("UPDATE click SET num = num +1 WHERE name = '".$_GET['a']."'");
 if(mysql_affected_rows()==1){
  $rs=mysql_query("select * from click where name='".$_GET['a']."'");
  $row=mysql_fetch_array($rs);
  echo $row['num'];
 }
&#63;>

以上所述就是本文的全部内容了，希望大家能够喜欢。

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