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HomeBackend DevelopmentPHP Tutorialphp桌面中心(三) 修改数据库_php实例

下面这个程序在你输入id后就把那个id的数据列出来。然后你就可以修改后写入了. 
 

 

数据库的数据更新

 
 
if(isset($id)) 

if(!mysql_connect("localhost","用户名","密码")) 
{echo"无法联接数据库"; 
exit(); 

if(isset($url)) 

$query="update $jpg set id='$id',url='$url',mess='$mess',
fromx='$fromx',url1='$url1',mess1='$mess1',fromx1='$fromx1',url2='$url2',
mess2='$mess2',fromx2='$fromx2',url3='$url3',mess3='$mess3',fromx3='$fromx3' 
where id='$id'" ; 
$result=mysql_db_query("elong",$query); //执行写入 
if (!$result) 
{echo "发生错误!"; 
exit(); 

echo "$id 已经更新!

"; 
echo "n 


























ID $id
url地址 $url
小图 $mess
说明 $fromx
url地址1 $url1
小图1 $mess1
说明1 $fromx1
url地址2 $url2
小图2 $mess2
说明2 $fromx2
url地址3 $url3
小图3 $mess3
说明3 $fromx3
n"; 
echo "回到首页"; 
exit(); 

$query="SELECT id,url,mess,fromx,url1,mess1,fromx1,url2,mess2,fromx2,url3,mess3,fromx3 from $jpg 
where id='$id'" ; 
$result=mysql_db_query("elong",$query); 
if (!$result) 
{echo "发生错误!"; 
exit(); 

$r=mysql_fetch_array($result); 
$id = $r["id"]; 
$url = $r["url"]; 
$mess = $r["mess"]; 
$fromx = $r["fromx"]; 
$url1 = $r["url1"]; 
$mess1 = $r["mess1"]; 
$fromx1 = $r["fromx1"]; 
$url2 = $r["url2"]; 
$mess2 = $r["mess2"]; 
$fromx2 = $r["fromx2"]; 
$url3 = $r["url3"]; 
$mess3 = $r["mess3"]; 
$fromx3 = $r["fromx3"]; 
echo" 






























ID:  
类形:  
图片url地址:  
说明:  
来自:  
图片url地址:  
说明:  
来自:  
图片url地址:  
说明:  
来自:  
图片url地址:  
说明:  
来自:  


n"; 

else 
{?> 

请输放需要更改的id:

 
 

 
动漫桌布 
 
平分秋色水彩画 
 
明星写真 
 
广告创意 
 
其它类 
 

 
 
 
 
}?> 
 
 
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