How to determine server space for a downloaded file or not?

Question

I have a download site and I want to know how can I find out the server space via php?

eg:

if($_FILES ...) { if($server_rest_space enough for the file){ // upload it! } else{ echo 'no space on your server enough!'; //there is no space!! } 

An important other question if the server is full! and any one uploaded file will fail?

Thank you

Answer 1

Try using disk_free_space()