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本文主要和大家介绍了PHP+Ajax实现的博客文章添加类别功能,结合实例形式分析了php+ajax实现的数据交互、数据库连接、查询等相关操作技巧,需要的朋友可以参考下,希望能帮助到大家。

一. 代码

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


<?phprequire_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="https://zhishitu.com/ke" 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="https://zhishitu.com/ke" 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="https://zhishitu.com/ke" 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="https://zhishitu.com/ke" 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


<?phprequire_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="https://zhishitu.com/ke" 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="https://zhishitu.com/ke" 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="https://zhishitu.com/ke" 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="https://zhishitu.com/ke" 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>

二. 运行结果

PHP和Ajax实现文章添加类别功能


以上就是PHP和Ajax实现文章添加类别功能的知识。速戳>>知识兔学习精品课!