exec() : Works on command line but not via web

[technoboi]

Debian (Raspbian)
php version: 5.6.17-0+deb8u1

I want to execute shell commands for local use using exec() - or similar.

If I execute my program via the command line it works fine but I can’t get it to work via a web page. I’ve tried altering permissions and ownership and tried what I know about in php.ini to no avail. I’ve also tried using the same php.ini for both but no luck.

Typical command: exec(‘pkill tmux’);

Any suggestions please?

[astonecipher]

Are you on shared hosting? If so, some commands are removed as to not crash the server for everyone else.

[technoboi]

Thanks for your reply.
No, this is my own personal network.

[astonecipher]

Might look at this in that case.