本文實例講述了PHP+Ajax實現(xiàn)的博客文章添加類別功能。分享給大家供大家參考，具體如下：
一. 代碼
fun.js
function saveType(typename, username){
if(typename==''){ //判斷博客類別是否為空
alert('請輸入類別名稱！');
}else if(username==''){ //判斷用戶名是否為空
alert('請輸入用戶名！');
}else{
var xmlObj; //定義XMLHttpRequest對象
var urlData = "typename="+typename+"username="+username; //指定要發(fā)送的數(shù)據(jù)
if(window.ActiveXObject){ //判斷瀏覽器是否支持ActiveXObject組件，如支持則通過ActiveXObject方式創(chuàng)建XMLHttpRequest對象
xmlObj = new ActiveXObject("Microsoft.XMLHTTP");
}else if(window.XMLHttpRequest){ //如果瀏覽器不支持ActiveXObject組件，則使用XMLHttpRequest組件創(chuàng)建XMLHttpRequest對象
xmlObj = new XMLHttpRequest();
}
xmlObj.onreadystatechange = callBackFun; //指定回調(diào)函數(shù)
xmlObj.open("POST", "saveType.php", true); //指定提交方法和頁面
xmlObj.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;"); //指定發(fā)送數(shù)據(jù)庫類型
xmlObj.send(urlData); //指定發(fā)送的數(shù)據(jù)
function callBackFun(){ //定義回調(diào)函數(shù)
if(xmlObj.readyState == 4 xmlObj.status == 200){ //如果服務(wù)器端返回內(nèi)容并無錯誤發(fā)生
if(xmlObj.responseText == 'y'){ //判斷保存是否成功，并給出提示
alert('類別添加成功！');
}else{
alert('類別添加失??！');
}
}
}
}
}
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>添加類別/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">div align="center">a href="#" rel="external nofollow" rel="external nofollow" class="a1">?= $result['typename']?>/a>/div>/td>
/tr>
tr>
td bgcolor="#F2F2F2" height="12">div align="left">發(fā)布人：
?= $result['username']?>
/a>/div>/td>
/tr>
?php
}while($result = mysql_fetch_array($sql));
}else{
?>
tr>
td bgcolor="#A6E617" height="20">暫無文章類別/td>
/tr>
?php
}
?>
/table>
/td>
td width="455" bgcolor="#FFFFFF" style="padding-left:30px; line-height:25px">
請輸入博客類別：br />
nbsp;nbsp;nbsp;nbsp;input type="text" name="typename" size="30" id="typename" />br />br/>
發(fā)布人：br />
nbsp;nbsp;nbsp;nbsp;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">div align="center">
DIV align="center">『博客』 版權(quán)所有 a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="a1">吉林省**科技有限公司/a>! 未經(jīng)授權(quán)禁止復(fù)制或建立鏡像!BR>
BR>Copyright copy; a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="a1">www.mingri***.com/a> All Rights Reserved!BR>
/DIV>
/div>/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>添加類別/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">div align="center">a href="#" rel="external nofollow" rel="external nofollow" class="a1">?= $result['typename']?>/a>/div>/td>
/tr>
tr>
td bgcolor="#F2F2F2" height="12">div align="left">發(fā)布人：
?= $result['username']?>
/a>/div>/td>
/tr>
?php
}while($result = mysql_fetch_array($sql));
}else{
?>
tr>
td bgcolor="#A6E617" height="20">暫無文章類別/td>
/tr>
?php
}
?>
/table>
/td>
td width="455" bgcolor="#FFFFFF" style="padding-left:30px; line-height:25px">
請輸入博客類別：br />
nbsp;nbsp;nbsp;nbsp;input type="text" name="typename" size="30" id="typename" />br />br/>
發(fā)布人：br />
nbsp;nbsp;nbsp;nbsp;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">div align="center">
DIV align="center">『博客』 版權(quán)所有 a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="a1">吉林省**科技有限公司/a>! 未經(jīng)授權(quán)禁止復(fù)制或建立鏡像!BR>
BR>Copyright copy; a rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="a1">www.mingri***.com/a> All Rights Reserved!BR>
/DIV>
/div>/td>
/tr>
/table>
/body>
/html>
二. 運行結(jié)果
更多關(guān)于PHP相關(guān)內(nèi)容感興趣的讀者可查看本站專題：《PHP+ajax技巧與應(yīng)用小結(jié)》、《PHP網(wǎng)絡(luò)編程技巧總結(jié)》、《PHP基本語法入門教程》、《php面向?qū)ο蟪绦蛟O(shè)計入門教程》、《php字符串(string)用法總結(jié)》、《php+mysql數(shù)據(jù)庫操作入門教程》及《php常見數(shù)據(jù)庫操作技巧匯總》
希望本文所述對大家PHP程序設(shè)計有所幫助。
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