Changing the tmp_upload_dir from the default, which was a the shared /tmp off of root, to a directory underneath my user directory fixed the issue. I'm not sure why this works, but it does.

Display errors is set to On. I had read about the LimitRequestBod y online, but I don't know how to check what it is currently set to. My host is GoDaddy, its a Linux shared hosting account. Can those two directives be set in the php.ini file? If so what values should I used. I don't need to post files via HTTP much any bigger than 150-200MB.

I am having difficulty uploading some large files using php/html form. The code has worked for file sizes up to 23MB. When I've tried a 50MB file, i get a blank page instead of my confirmation echo statement. My web research indicates that I needed to alter some php directives either in an .htaccess file or php.ini. I have edited my php.ini file and included all the relevant directives I could find. Here are the newly added lines. I have confirmed...