I created an uploader script which can upload large files because it splits it into blobs. But I figured out that using PHP's fopen and fwrite won't work for putting the parts back together again (maybe a memory thing).
I figured out that there is a unix command cat that could put it together (http://www.cyberciti.biz/faq/linux-unix-appleosx-bsd-cat-command-examples/)
But the question is: How can I select all fileparts and put it together in one PHP exec command?
I think the syntax would be kinda like this but I have no idea how to select all the parts:
exec('cat "'.$all_my_parts.'" >> "' . $original_filename.'"');