[Description] If this check box is selected, then PhpStorm will keep indents on the empty lines as if they have contained some code. If this check box is not selected, PhpStorm will delete the tabulation characters. [Item] 
Keep indents on empty lines
U s e t a b c h a r a c t e r
S m a r t t a b s
T a b s i z e
I n d e n t
C o n t i n u a t i o n i n d e n t
K e e p i n d e n t s o n e m p t y l i n e s