The following is a relatively complete code that can be used in practical applications. This code is ajax Implemented in combination with php code.
1.ajax code is as follows:
<!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?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>2.php code:
<?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'];
}
?>
The above is the entire content of this article, I hope you all like it.
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