How to install GMP extension for PHP

Question

I was getting the following error when trying to run composer update on a SimpleSAML project.

- openid/php-openid dev-master requires ext-gmp * -> the requested PHP extension gmp is missing from your system.

Running sudo apt-get install php5-gmp did not work and neither did sudo apt-get install php7-gmp

What does "did not work" mean? Did apt-get report an error (php7-gmp doesn't exist) or did it install fine but not help (php5-gmp is not used by php7)? The command `apt search php gmp` gives you the list of relevant packages, it suggests that you should install php-gmp if you are using whatever the current default version of PHP is, or php7.0-gmp if you very specifically want to use PHP version 7.0. — Marc Glisse, Oct 13 '16 at 05:40
Yes. The error was that the package did not exist. Oh `apt search php gmp` would have been a great thing to do. — Sam Malayek, Oct 13 '16 at 07:29

Sam Malayek · Accepted Answer · 2019-08-25T07:04:36.713

89

To install GMP for PHP7.0 on Ubuntu, run: sudo apt-get install php7.0-gmp

Make sure your php.ini contains the following: extension=php_gmp.so

To find out where your php.ini is located, run: php --ini

edited Aug 25 '19 at 07:04

answered Oct 13 '16 at 00:00

Sam Malayek

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Thank you so much, that fixed it ! – Rahul Gupta Aug 19 '17 at 07:25
after running the command and adding lines in php.ini file, its i don't get gmp module installed. – Ganesh K Oct 10 '17 at 05:52
1

there's no need to add that line to ini file. it's included automatically. – Mike Shiyan Jun 27 '18 at 15:35
1

@Ganesh K you need to install the same version of GMP as your PHP. If you have multiple PHP installs on your machine, you can install GMP for each of them. – Mike Shiyan Jun 27 '18 at 15:38
1

I had to restart apache2 too, adding the line to ini file was not needed. – M.Othman Jul 03 '18 at 11:44

score 21 · Answer 2 · edited Mar 08 '18 at 03:53

21

For PHP 7.2:

sudo apt-get install php7.2-gmp

edited Mar 08 '18 at 03:53

Pang

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answered Mar 08 '18 at 03:27

Bob Roan

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score 17 · Answer 3 · edited Feb 17 '19 at 13:29

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The new way in PHP 7 to install extensions is to just write "php-EXTENSION" In this case it's as simple as:

sudo apt-get install php-gmp

edited Feb 17 '19 at 13:29

Zoe

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answered Sep 24 '18 at 13:15

Ales Rebec

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Importantly this works for PHP 8 as well! – Antony Apr 14 '21 at 09:43

score 13 · Answer 4 · answered Oct 20 '20 at 12:24

13

For docker based on official php images like php:7.2-fpm

Just add this to Dockerfile

RUN apt install -y libgmp-dev && docker-php-ext-install gmp

answered Oct 20 '20 at 12:24

Panoptik

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score 12 · Answer 5 · answered May 26 '20 at 11:27

12

For PHP 7.4:

sudo apt-get install php7.4-gmp

SO: Ubuntu 20.04

answered May 26 '20 at 11:27

Nelson Mfinda

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score 7 · Answer 6 · answered Feb 06 '19 at 20:10

If you are running php 7.2 and above, then

sudo apt-get install php7.2-gmp

or you can as well install bcmath extension using

sudo apt-get install php7.2-bcmath

I recommend you install both of them, after complete install restart apache

sudo service apache2 reload

sudo service apache2 restart

score 6 · Answer 7 · edited Sep 22 '19 at 23:19

6

Thank you it helps me. I use PHP 7.2. Therefore, I run:

sudo apt-get install php7.2-gmp
extension=php_gmp.so

edited Sep 22 '19 at 23:19

pppery

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answered Jul 22 '19 at 09:01

Wyatt

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score 5 · Answer 8 · edited Mar 08 '18 at 03:54

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apt-get install php7.1-gmp

That's it.

edited Mar 08 '18 at 03:54

Pang

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answered Aug 31 '17 at 12:41

anon

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on ubuntu 16.04lts its says, unable to locate packege php7.1-gmp – Ganesh K Oct 10 '17 at 05:50

ANIK ISLAM SHOJIB · Answer 9 · 2019-08-20T06:47:21.337

4

for centos

sudo yum install php-gmp

for ubuntu

sudo apt install php-gmp

also enable php extension in ini file

extension=php_gmp.so

edited Aug 20 '19 at 06:47

answered Feb 17 '19 at 11:48

ANIK ISLAM SHOJIB

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score 3 · Answer 10 · answered Apr 01 '19 at 23:56

3

UPDATE: apt-get has evolved over the years into just apt. On modern systems this will detect the php version, etc.

sudo apt install php-gmp

answered Apr 01 '19 at 23:56

Tarek Adam

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not on my Ubuntu 18 I had to run "sudo apt-get install php7.3-gmp" to finally get it working – Augusto May 24 '20 at 15:02

score 1 · Answer 11 · answered Nov 08 '18 at 05:18

It's better to search using package or dependency manager installed in machine. For yum, you can search using yum search gmp and then install.

yum search gmp

This will yield these search results

Loaded pluginss: extras_suggestions, langpacks, priorities, update-motd
170 packages excluded due to repository priority protections
========================================================= N/S matched: gmp ==========================================================
perl-Math-BigInt-GMP.x86_64 : Math::BigInt::GMP Perl module
python-gmpy2.x86_64 : Python 2 interface to GMP, MPFR, and MPC
gmp.x86_64 : A GNU arbitrary precision library
gmp.i686 : A GNU arbitrary precision library
gmp-devel.x86_64 : Development tools for the GNU MP arbitrary precision library
gmp-static.x86_64 : Development tools for the GNU MP arbitrary precision library
mingw32-gmp.noarch : Cross-compiled GNU arbitrary precision library
mingw64-gmp.noarch : Cross-compiled GNU arbitrary precision library
perl-Math-GMP.x86_64 : High speed arbitrary size integer math
php-gmp.x86_64 : A module for PHP applications for using the GNU MP library

Now install extension with: yum install php-gmp.x86_64

Kishore · Answer 12 · 2020-06-08T10:48:02.407

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For PHP 7.3 try this.

sudo apt-get install php7.3 -gmp
extension=php_gmp.so

in Ubuntu

edited Jun 08 '20 at 10:48

answered Aug 29 '19 at 11:38

Kishore

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How to install GMP extension for PHP

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