Enable PHP modules for a specific user - php

Question

On my Ubuntu 16.04 machine I installed the following PHP 7.4 modules:
[PHP Modules]
calendar
Core
ctype
date
dom
exif
FFI
fileinfo
filter
ftp
gd
gettext
hash
iconv
json
libxml
mbstring
mysqli
mysqlnd
openssl
pcntl
pcre
PDO
pdo_mysql
Phar
posix
readline
Reflection
session
shmop
SimpleXML
sockets
sodium
SPL
standard
sysvmsg
sysvsem
sysvshm
tokenizer
xml
xmlreader
xmlwriter
xsl
Zend OPcache
zlib
[Zend Modules]
Zend OPcache
but if I run:
php -m
under some specific user, I get:
[PHP Modules]
Core
date
filter
hash
libxml
openssl
pcntl
pcre
Reflection
session
sodium
SPL
standard
zlib
[Zend Modules]
What does this mean?
How to make all PHP modules accessible for that user?
Tried to run
phpenmod gd
under this user, but got:
WARNING: Module gd ini file doesn't exist under /etc/php/7.4/mods-available
WARNING: Module gd ini file doesn't exist under /etc/php/7.4/mods-available
WARNING: Module gd ini file doesn't exist under /etc/php/7.0/mods-available
WARNING: Module gd ini file doesn't exist under /etc/php/7.0/mods-available
WARNING: Module gd ini file doesn't exist under /etc/php/7.0/mods-available
and nothing changed.
When I call phpinfo() function under that user, it displays:
so I do not understand why php -m console command does not display gd module.