link.php

是个关于网格编程的程序

<?PHP
//*****************************************
//       id: link
//       EasyTalk V3.0 2008.5.6 20:50
//       by 仙踪云影
//*****************************************

define('is_admin_path', 'yes');
require_once '../common.php';
$smarty->template_dir = "templates";     
$smarty->compile_dir = "templates_c"; 
if ($admin_login !="yes" || $isadmin!=1)
header("Location: admin_login.php");
$linkname = $_POST["linkname"];
$linkweb = $_POST["linkweb"];
$action = $_POST["action"];
if ($action=="link") {
$datetime = time();
if ($linkname =="" && $linkweb =="" ) {
echo "<script>alert(\"提示：链接标题或者地址为空，不能提交！\");window.location.href='$prev';</script>"; 
exit;}
else {
$query = "INSERT INTO ".$DBprefix."link (link_name,link_web) VALUES ('$linkname','$linkweb')";  
$result = mysql_query($query); 
}
header("Location: link.php");
}
if ($action=="link.php?edit") { 
$lid = $_POST["link_id"];
$new_name = $_POST["new_name"];
$new_web = $_POST["new_web"];
$query = "UPDATE ".$DBprefix."link SET link_name = '$new_name' ,link_web='$new_web' where link_id='$lid'"; 
mysql_query($query); 
header("Location: link.php");
}
if ($action=="link.php?del") { 
$lid = $_POST["link_id"];
$query = "DELETE FROM ".$DBprefix."link WHERE link_id='$lid'";
mysql_query($query); 
header("Location: link.php");
}
$query = "select link_id,link_name,link_web from ".$DBprefix."link order by link_id desc";
$result=mysql_query($query);
while ($data=@mysql_Fetch_array($result)) {
$link_id=$data['link_id'];
$link_name=$data['link_name'];
$link_web=$data['link_web'];
$array[] = array("link_id"=>$link_id,"link_name"=>$link_name,"link_web"=>$link_web);
}
$smarty->assign("link", $array);
unset($array);
$smarty->display("link.htm"); 
?>