Documentation of ini directive 'file_uploads'

Hi. I have a question about the PHP ini directive “file_uploads” (see http://www.php.net/manual/en/ini.core.php#ini.file-uploads<http://www.php.net/manual/en/ini.core.php%23ini.file-uploads>). Sorry, if this is not the correct mailinglist to ask this question, but I think the documentation is not clear enough on this directive. It is explained that the value is measured in bytes if an integer is used. But what is the byte value for? Is it it the maximum of the filesize of all uploaded files together? Doesn’t it collide with “post_max_size”, or is it an addition to “post_max_size”? If “file_uploads” is less than “post_max_size”, is the difference used for the POST-Variables? But what if “file_uploads” is greater than “post_max_size”? Which value is taken for upload size limitation? The less one? Thanks for help ;) Christian