Check existence of a value in select option

Hello Experts,

I need to check if a certain variable exits in select option.

EX ;

select options : s_bukrs like t001-bukrs.

data : l_bukrs type bukrs.

No suppose s_bukrs is filed as ( low - 100, high - 110, 111 , 115) so possible values are 100-110,111 and 115.

Now I want to check if the value of l_bukrs is possible/exists in s_bukrs.

Is there any standard way for it ?

Please note that IF  l_bukrs IN s_bukrs, does not works here also reading from table s_bukrs[] seems to be a tricky thing.

Any suggestions ?

Regards,

Sayantan