魔术日期以秒为单位

Code work great until 29.10.2017 Any suggestions ?

$blabla="29.10.2017"; // problem with this date 
$blabla = strtotime($blabla); 
$blabla=date('d.m.Y',($blabla)); 
echo $blabla."<br />"; 
$blabla = strtotime($blabla); 
$blabla=$blabla+86400+86400; // only +2 days works  
$blabla=date('d.m.Y',($blabla)); 
echo $blabla."  <br />";

Probably because there is switch from daylight saving time to standard time at that day

strtotime('+ 2 days',$yourTime);

should work better at this case