Dieser Artikel stellt hauptsächlich die von PHP + Ajax implementierte Funktion zum Hinzufügen von Kategorien im Blog-Beitrag vor und analysiert die von PHP + Ajax implementierten Dateninteraktion, Datenbankverbindung, Abfrage und andere verwandte Betriebsfähigkeiten in Form von Beispielen Ich hoffe, ich kann allen helfen.
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！');
}
}
}
}
}Nach dem Login kopieren
Verbindung. 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');
?>
Nach dem Login kopieren
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>Nach dem Login kopieren
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>Nach dem Login kopieren
2. Laufergebnisse
Das obige ist der detaillierte Inhalt vonPHP und Ajax realisieren die Funktion des Hinzufügens von Kategorien zu Artikeln. Für weitere Informationen folgen Sie bitte anderen verwandten Artikeln auf der PHP chinesischen Website!
