Sessions: what's wrong sith this code?

I tried to put an array into a session, but I can get it to work... here is my code: <pre> if(!isset($script_total_time)) { $script_total_time=(float)$total_time; session_register("script_total_time"); $step_times_array[$step]=$total_time; $step_times=serialize($step_times_array); //echo "step_times=\"$step_times\""; //this when not commented, echoes perfectly the string with the serialized array... session_register("step_times"); //so why doesn't it work if $step_times is in fact a string? } else { $script_total_time+=(float)$total_time; $step_times_array=unserialize($step_times); $step_times_array[$step]=$total_time; $step_times=serialize($step_times_array); } </pre> the variable $script_total_time works like a charm, and it also updates perfectly, but the step_times array simply doesn't work... I looked into the session-cookie-file and the step_times is set but as empty... I don't get what is wrong... For the record this is a code from a script which have several steps, all reloads of the same .php file and I want to store the execution times for each step (step_times) and the total running time (already working)... ____________________________ . Christian Dechery (lemming) . http://www.tanamesa.com.br . Gaita-L Owner / Web Developer