PHP5.5 and post_max_size

I’m trying to do an import of an XML export in to my dev environment, which is using PHP5.5. I’ve updated the upload_max_filesize in the php.ini to a sufficient size (96M), but the import still is complaining about the size. Googling revealed that setting the post_max_size to a larger value should fix it as well, but – surprise, surprise – in PHP5.5, there is no setting in php.ini for post_max_size.

Anybody have any ideas on how to fix this using PHP5.5?