How to install php extension Gmp

jamessmitth · February 25, 2024, 5:06am

I bought a software and in the server requirements I need gmp. I searched around in the forum and apparently sudo apt-get install php7.4-gmp does it. Do I run this as root?

jamessmitth · February 25, 2024, 5:24am

eris · February 25, 2024, 8:06am

apt-get install php8.2-gmp
in this case

jamessmitth · February 25, 2024, 8:59am

do I ssh in the hestiacp user accout where the domain is hosted and cd into the public html and do that account or do I do it for the main sudo account.

eris · February 25, 2024, 9:16am

Use root

Sergeforfun · January 26, 2026, 5:27pm

Hello, Eris @eris Please help

I have the same proble, the same script

I have ubuntu server 22.04 + hestia + use php 8.2.28 version and cann`t install gmp

I tried:

apt-get install -y libgmp-dev

apt-get install php8.2-gmp

or

apt-get install php8.2-gmp --fix-missing

systemctl restart php8.2-fpm

Also added - Make sure your php.ini contains the following: extension=gmp

But I have errors:

Err:1 Index of /ondrej/php/ubuntu jammy/main amd64 php8.2-gmp amd64 8.2.28-1+ubuntu22.04.1+deb.sury.org+1

404 Not Found [IP: 185.125.190.80 443]

E: Failed to fetch https://ppa.launchpadcontent.net/ondrej/php/ubuntu/pool/main/p/php8.2/php8.2-gmp_8.2.28-1%2Bubuntu22.04.1%2Bdeb.sury.org%2B1_amd64.deb 404 Not Found [IP: 185.125.190.80 443]

E: Internal Error, ordering was unable to handle the media swap

Please, help

Sergeforfun · January 27, 2026, 11:19am

after some actions i have answer

php8.2 -m | grep gmp

PHP Warning: PHP Startup: Unable to load dynamic library ‘gmp’ (tried: /usr/lib/php/20220829/gmp (/usr/lib/php/20220829/gmp: cannot open shared object file: No such file or directory), /usr/lib/php/20220829/gmp.so (/usr/lib/php/20220829/gmp.so: cannot open shared object file: No such file or directory)) in Unknown on line 0

also

PHP Warning: PHP Startup: Unable to load dynamic library ‘gmp’ (tried: /usr/lib/php/20230831/gmp (/usr/lib/php/20230831/gmp: cannot open shared object file: No such file or directory), /usr/lib/php/20230831/gmp.so (/usr/lib/php/20230831/gmp.so: cannot open shared object file: No such file or directory)) in Unknown on line 0

@eris Please help to fix it

sahsanu · January 27, 2026, 4:17pm

Show the output of these commands:

ls -la /etc/apt/sources.list.d/
cat -A /etc/apt/sources.list.d/ondrej-ubuntu-php-jammy.list
apt update
curl -fsSLm20 https://7j.gg/hcpver | sudo bash -s --

Sergeforfun · January 27, 2026, 4:25pm

I cann`t unserstand

But the problem was solved

Thank You