2013/8/8 Jim Giner <jim.giner@xxxxxxxxxxxxxxxxxx> > On 8/8/2013 1:43 PM, Karl-Arne Gjersøyen wrote: > >> 2013/8/8 Jim Giner <jim.giner@xxxxxxxxxxxxxxxxxx> >> >> On 8/8/2013 1:32 PM, Karl-Arne Gjersøyen wrote: >>> >>> $oppdater_lager_med_antall_kg = $kg_pa_lager + >>>> $kg_fra_transportdokument_inn_****pa_valgt_lager; >>>> >>>> >>>> >>>> result: >>>> *Fatal error*: Unsupported operand types in * >>>> /Users/karl/Sites/kasen/io/kp/****index.php* on line *2970 >>>> >>>> >>>> *I have also tried this: >>>> >>>> $kg_pa_lager += $kg_fra_transportdokument_inn_****pa_valgt_lager; >>>> >>>> >>>> Both of them return this Fatal error. >>>> I am using Dreamweaver CS6 and the syntax check in my software say: "No >>>> syntax error" >>>> >>>> What am I doing wrong this time? >>>> >>>> Thanks for your good advice! >>>> >>>> Karl >>>> >>>> You do a var_dump on each variable to see what type they were defined >>>> as. >>>> >>> >> >> NULL array(2) { [0]=> string(3) "100" [1]=> string(3) "340" } >> >> That is one var. What is the other var? Thank you very much! Now I know the error.. One of those variables are NULL! When I fix it I think it work! Karl