Maximum upload file size: 2 MB
Step 1: find php.ini file in /etc folder by running below cmd:
grep -rl "post_max_size" | xargs ls -lrth
Here I have used post_max_size keyword to search php.ini file as might be we have to change the same on other file ,
It can vary to setup to setup.
Step 2:
Edit php.ini or found file.
set post_max_size = 100M
upload_max_filesize = 100M
In the above you can set any value as per your requirenment .
Step 3:
Restart the httpd or ngnix or apache and php service. As per setup you restart the service .
For me :
service nginx restart