vanishing variable

I've gotten the year from the following code on page one: date_array=getdate(); / / today's date info foreach ($date_array as $key=>$val) { $key=$val; } $current_year=$date_array[year]; I've used the $current_year variable throughout a form on the first page and the variable is picked up without problem everywhere it's used. I've brought in stored data to display on this same page using $php_self in a select box, and the $current_year variable still works fine. Finally, I've got another select box which calls a new page using get (I tried post, and it didn't work either), and the $current_year disappears never to be seen again. Perplexing, no?