I was trying to upload files. I mean files because I used loops that print number of "browse" button. But when the memory was increased in the server, the problem went away. ... Anyway, thanks for giving some hints. Another problem I am having is that my script just stops when I click the submit button. No error reported. Nothing. When I looked the source in MSE, I just the point where the script stopped and there is nothing wrong at that point in the script. Could you know why?
Thanks again