How can I do to pass many variables from file1.php to another one file2.php without having to fill all the URL?
Juan - four ideas come to mind quickly: use cookies, use a POST method (assuming there's forms going on here), use a temporary file on disk, use a database record.
Or check out Tim's awesome article on making ur pages search-engine friendly.
Or that could be overkill for what you want.
Or use sessions.