How to install PHP GMP on macOS High Sierra?


How to install PHP GMP on macOS High Sierra?



I am trying to install and enable GMP extension for PHP.


Mac OS High Sierra 10.13.5
PHP Version: 7.1.16
Composer version: 1.6.5
Homebrew version: 1.6.9



I am getting this error when I run composer install.


composer install


Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Your requirements could not be resolved to an installable set of packages.

Problem 1
- The requested PHP extension ext-gmp * is missing from your system. Install or enable PHP's gmp extension.



The composer.json has dependency on "ext-gmp": "*" . I have tried following things:


composer.json


"ext-gmp": "*"


brew install homebrew/php/php70-gmp


brew install gmp


brew install homebrew/homebrew-core/php70-gmp


php.ini


extension=php_gmp.dll



I'm still getting the same error on composer install. Can anyone please help me with this?





Did you try brew install php71-gmp?
– Prashant Barve
Jun 29 at 8:36



brew install php71-gmp





It says Error: No available formula with the name "php71-gmp"
– akshaykumar6
Jun 29 at 8:41


Error: No available formula with the name "php71-gmp"




2 Answers
2



Start Again. Install PHP 7



brew install php@7.1


brew install php@7.1



add php path to ~/.bash_profile or ~/.zshrc :


~/.bash_profile


~/.zshrc


export PATH="/usr/local/opt/php@7.1/bin:$PATH"



then source file, start php and check gmp has been loaded


brew services start php@7.1
source ~/.zshrc
php -info | grep "GMP"



Try Again





Do I have to install php again? I have followed this guide - websitebeaver.com/… Everything else is working fine.
– akshaykumar6
Jun 29 at 8:45






ok. just try to restart php.
– Umair Iftikhar
Jun 29 at 8:46





try this and then do above step again sudo apachectl restart
– Umair Iftikhar
Jun 29 at 8:49


sudo apachectl restart





I have not installed PHP via brew. High Sierra already comes with PHP 7.1 installed. I'm using that.
– akshaykumar6
Jun 29 at 8:54





In my mac I install composer via help of this link try this method if you just want to install composer.
– Umair Iftikhar
Jun 29 at 8:57




I was able to fix this by following this guide - https://getgrav.org/blog/macos-sierra-apache-multiple-php-versions



It removes already installed apache and PHP.






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