HTTP 500 Internal Server error when uploading files

Question

This is driving me crazy. I have a php file upload script hosted on CPanel-controlled web hosting, whenever I try to upload files larger than 3-4 MB I get a HTTP 500 Internal Server Error. Now, I did create a php.ini file in my public_html directory and did specify:

upload_max_filesize = 250M
post_max_size = 250M

and indeed, when I execute phpinfo() I see that both of these values are set and active. When I run the exact same script on my local wamp configuration it works.

I'm out of options here. What could it be? Memory exhaustion? Highly doubt it.

EDIT:

Weird: when I go to PHP Configuration in CPanel, upload_max_filesize is set to 2MB even though phpinfo() shows 250MB. So apparently it is blocked server-wide in WHM? Why does it say otherwise in phpinfo?

Solution

Looks like this may have been answered on stack already:

You need to increase FcgidMaxRequestLen in httpd.conf file

use something like

FcgidMaxRequestLen 67108864

php upload and internal server error