I was having some issues with Smarty, when i updated a template i have to reload it twice to see my changes.
After some digging i realized that Zend OPcache was causing it.
So i jut disable Zend OPcache and now is working as it should.
just edit php.ini as root.
sudo nano /etc/php5/apache2/php.ini
Find the line where “opcache.enable=1” is and change it to 0, if it has a “;” remove it and that’s all
[opcache] ; Determines if Zend OPCache is enabled opcache.enable=0
Then we simple reload apache
sudo /etc/init.d/apache2 restart