Enable GD support on PHP 7.2 in a Ubuntu 18.04-CodePudding

I need to enable GD support on PHP 7.2 in a Ubuntu 18.04 installation and I've found this solution on the web:

sudo apt-get install php7.2-gd

Since I'm not an expert and I'm worried about the already running configuration files, I have to ask if this command

will make a brand new installation of PHP with GD extension included

will just add the GD extension to my existing PHP installation and I don't have to worry about any configuration file changes

CodePudding user response：

This command will install the GD extension only if PHP 7.2 is already installed.

If not, it will also install php7.2-common since it is a dependency.

On a machine without PHP 7.2:

sudo apt install php7.2-gd

Reading package lists... Done
[...]
The following additional packages will be installed:
  php7.2-common
The following NEW packages will be installed:
  php7.2-common php7.2-gd

and with PHP 7.2 installed:

sudo apt install php7.2-gd

Reading package lists... Done
[...]

The following NEW packages will be installed:
  php7.2-gd

Once installed, the GD config files will be created under /etc/php/7.2/(fpm|cli...)/conf.d and should be named xx-gd.ini.

These config files are loaded after your main php.ini and contain extension specific settings (in your case, GD settings).