Customer id literal has customer_id+Domain_details, eg.: 998787+nl and now I just want to have 998787 and not +nl, how can this be acheived this in php

Question:

I have number like 9843324+nl and now I want to get rid of all elements including + and afterwards at the end and only have 9843324 and so how should I do this in php ?

Right now I am having $o_household->getInternalId returns me 9843324+nl but I want 9843324, how can I achieve this ?

Thanks.

Thanks.

Update :

    list($customer_id) = explode('+',$o_household->getInternalId());

Will this solve my problem ?