How to remove php limits?

Question

PHP

I want to remove limits

upload_max_filesize
max_file_uploads
post_max_size

How? Set to 0? -one? or over9000?
php 7
And whether it will open a hole to someone from the outside.

Answer 1

0 set. And yes, there is nothing good in turning off the limits. You can easily screw up. A hole is not a hole, but they can increase the load on the channel if desired.