复制代码 代码如下:
DebugStr('$Adv->getContentById($id); $id为广告编号， 仅调用一条，返回内容为字符串');
echo Adv::getContentById(35);
DebugStr('$Adv->getContentByIdJS($id); $id为广告编号， 仅调用一条，返回内容为JS字符串');
echo Adv::getContentByIdJS(35);
DebugStr('$Adv->getContentByOrder($id); $id为广告编号， 仅调用ID倒序一条，返回内容为字符串');
echo Adv::getContentByOrder(4);
DebugStr('$Adv->getContentByOrderJS($id); $id为广告编号， 仅调用ID倒序一条，返回内容为JS字符串');
echo Adv::getContentByOrderJS(4);
echo '
';
类如下：
复制代码 代码如下:
class Adv {
static $Id = 0; //编号
static $Order = 0; //顺序
static $JS = 0; //是否使用JS， 0为不使用
public static function getContentById($id){
self::$Id = $id;
return self::getContent();
}
public static function getContentByIdJS($id){
self::$Id = $id;
self::$JS = 1;
return self::getContent();
}
public static function getContentByOrder($order){
self::$Order = $order;
return self::getContent();
}
public static function getContentByOrderJS($order){
self::$Order = $order;
self::$JS = 1;
return self::getContent();
}
private function getContent(){
$ReturnContent='';
//------------------0-------1--------2--------3
$SqlStr = 'SELECt `pic`, `width`, `height`, `url` FROM '.TABLE_ADV;
if(self::$Id){
$SqlStr.= ' WHERe `id`=' . self::$Id;
}else{
$SqlStr.= ' WHERe `order`=' . self::$Order;
$SqlStr.= ' ORDER BY `id` DESC ';
}
$SqlStr.= ' LIMIT 1';
$MyDatabase=Database::Get();
$MyDatabase->SqlStr = $SqlStr;
if ($MyDatabase->Query ()) {
$DB_Record = $MyDatabase->ResultArr [0];
$FileName = $DB_Record[0];
$Width = $DB_Record[1];
$Height = $DB_Record[2];
$Url = $DB_Record[3];
}
//判断类型
$FileName_Ext=strtoupper(pathinfo($FileName, PATHINFO_EXTENSION));
if ($FileName_Ext=='SWF'){
//Flash广告
$ReturnContent = '
| '; $ReturnContent.= '
$ReturnContent.= ' | ';
}else{
//图片广告
$ReturnContent = '';
}
//如果为调用JS方式
if(self::$JS){
$ReturnContent = 'document.write("'.addslashes($ReturnContent).'");';
}
//重置默认值，这里还是采用单件模式
self::$Id = 0;
self::$Order = 0;
self::$JS = 0;
return $ReturnContent;
}
}
?>
