This article mainly introduces the blog post adding category function implemented by PHP+Ajax, and analyzes the data interaction, database connection, query and other related operation skills implemented by PHP+ajax in the form of examples. Friends who need it can refer to it. I hope Can help everyone.
1. Code
fun.js
function saveType(typename, username){
if(typename==''){ //判断博客类别是否为空
alert('请输入类别名称！');
}else if(username==''){ //判断用户名是否为空
alert('请输入用户名！');
}else{
var xmlObj; //定义XMLHttpRequest对象
var urlData = "typename="+typename+"&username="+username; //指定要发送的数据
if(window.ActiveXObject){ //判断浏览器是否支持ActiveXObject组件，如支持则通过ActiveXObject方式创建XMLHttpRequest对象
xmlObj = new ActiveXObject("Microsoft.XMLHTTP");
}else if(window.XMLHttpRequest){ //如果浏览器不支持ActiveXObject组件，则使用XMLHttpRequest组件创建XMLHttpRequest对象
xmlObj = new XMLHttpRequest();
}
xmlObj.onreadystatechange = callBackFun; //指定回调函数
xmlObj.open("POST", "saveType.php", true); //指定提交方法和页面
xmlObj.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;"); //指定发送数据库类型
xmlObj.send(urlData); //指定发送的数据
function callBackFun(){ //定义回调函数
if(xmlObj.readyState == 4 && xmlObj.status == 200){ //如果服务器端返回内容并无错误发生
if(xmlObj.responseText == 'y'){ //判断保存是否成功，并给出提示
alert('类别添加成功！');
}else{
alert('类别添加失败！');
}
}
}
}
}conn.php
<?php $host = '127.0.0.1'; $userName = 'root'; $password = 'root'; $connID = mysql_connect($host, $userName, $password); mysql_select_db('db_database27', $connID); mysql_query('set names gbk'); ?>
index.php
<?php
require_once 'conn.php';
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>添加类别</title>
<link rel="stylesheet" type="text/css" href="css/style.css" rel="external nofollow" rel="external nofollow" />
</head>
<script language="javascript" src="js/fun.js"></script>
<body>
<table border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td><img src="images/banner.gif" width="608" height="109" /></td>
</tr>
</table>
<table width="200" height="7" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td></td>
</tr>
</table>
<table width="608" height="200" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#7ED227">
<tr>
<td width="150" bgcolor="#F6FEFE" valign="top">
<table width="150" border="0" cellpadding="0" cellspacing="1" bordercolor="#FFFFFF" bgcolor="#D6FEFE">
<?php
$sql = mysql_query("select typename,username from tb_type order by addtime desc", $connID);
$result = mysql_fetch_array($sql);
if ($result){
do{
?>
<tr>
<td bgcolor="#A6E617" height="20"><p align="center"><a href="#" rel="external nofollow" rel="external nofollow" class="a1"><?= $result['typename']?></a></p></td>
</tr>
<tr>
<td bgcolor="#F2F2F2" height="12"><p align="left">发布人：
<?= $result['username']?>
</a></p></td>
</tr>
<?php
}while($result = mysql_fetch_array($sql));
}else{
?>
<tr>
<td bgcolor="#A6E617" height="20">暂无文章类别</td>
</tr>
<?php
}
?>
</table>
</td>
<td width="455" bgcolor="#FFFFFF" style="padding-left:30px; line-height:25px">
请输入博客类别：<br />
<input type="text" name="typename" size="30" id="typename" /><br /><br/>
发布人：<br />
<input type="text" name="username" size="30" id="username" /><br /><br/>
<input type="button" value="保存" onclick="saveType(typename.value, username.value)" />
</td>
</tr>
</table>
<table width="200" height="7" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td></td>
</tr>
</table>
<table width="608" height="70" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td background="images/bottom.gif"><p align="center">
<p align="center">『博客』 版权所有 <a href="http://www.mingri***.com" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="a1">吉林省**科技有限公司</a>! 未经授权禁止复制或建立镜像!<BR>
<BR>Copyright © <a href="http://www.mingri***.com" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="a1">www.mingri***.com</a> All Rights Reserved!<BR>
</p>
</p></td>
</tr>
</table>
</body>
</html>saveType.php
<?php
require_once 'conn.php';
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>添加类别</title>
<link rel="stylesheet" type="text/css" href="css/style.css" rel="external nofollow" rel="external nofollow" />
</head>
<script language="javascript" src="js/fun.js"></script>
<body>
<table border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td><img src="images/banner.gif" width="608" height="109" /></td>
</tr>
</table>
<table width="200" height="7" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td></td>
</tr>
</table>
<table width="608" height="200" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#7ED227">
<tr>
<td width="150" bgcolor="#F6FEFE" valign="top">
<table width="150" border="0" cellpadding="0" cellspacing="1" bordercolor="#FFFFFF" bgcolor="#D6FEFE">
<?php
$sql = mysql_query("select typename,username from tb_type order by addtime desc", $connID);
$result = mysql_fetch_array($sql);
if ($result){
do{
?>
<tr>
<td bgcolor="#A6E617" height="20"><p align="center"><a href="#" rel="external nofollow" rel="external nofollow" class="a1"><?= $result['typename']?></a></p></td>
</tr>
<tr>
<td bgcolor="#F2F2F2" height="12"><p align="left">发布人：
<?= $result['username']?>
</a></p></td>
</tr>
<?php
}while($result = mysql_fetch_array($sql));
}else{
?>
<tr>
<td bgcolor="#A6E617" height="20">暂无文章类别</td>
</tr>
<?php
}
?>
</table>
</td>
<td width="455" bgcolor="#FFFFFF" style="padding-left:30px; line-height:25px">
请输入博客类别：<br />
<input type="text" name="typename" size="30" id="typename" /><br /><br/>
发布人：<br />
<input type="text" name="username" size="30" id="username" /><br /><br/>
<input type="button" value="保存" onclick="saveType(typename.value, username.value)" />
</td>
</tr>
</table>
<table width="200" height="7" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td></td>
</tr>
</table>
<table width="608" height="70" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td background="images/bottom.gif"><p align="center">
<p align="center">『博客』 版权所有 <a href="http://www.mingri***.com" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="a1">吉林省**科技有限公司</a>! 未经授权禁止复制或建立镜像!<BR>
<BR>Copyright © <a href="http://www.mingri***.com" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="a1">www.mingri***.com</a> All Rights Reserved!<BR>
</p>
</p></td>
</tr>
</table>
</body>
</html>2. Running results
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The above is the detailed content of PHP and Ajax realize the function of adding categories to articles. For more information, please follow other related articles on the PHP Chinese website!
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