for($today=$date=strtotime(date('Y-m-d'));$date<=strtotime('+14 days',$today);$date=strtotime('+1 days',$date)) 

...AND eventdatum BETWEEN CURDATE() AND CURDATE() + INTERVAL 14 DAY 

...AND eventdatum BETWEEN CURDATE() - INTERVAL 30 DAY  AND CURDATE() 

for($today=$date=strtotime(date('Y-m-d')); 
$date<=strtotime('+14 days',$today); 
$date=strtotime('+1 days',$date)) 

for($today=$date=strtotime(date('Y-m-d')); 
$date>=strtotime('-30 days',$today); 
$date=strtotime('+1 days',$date)) 

 
 
$today = strtotime(date('Y-m-d'));  
$last30 = strtotime('-30 days', $today);  
for($date = $today; $date >= last30; $date = strtotime('-1 days', $date))  
{ 
echo date('d.m.y',$date).'   '; 
}