How to install mcrypt on PHP 7.3.3 ubuntu - php

Question

I tried to follow:
PHP Warning: PHP Startup: Unable to load dynamic library 'mcrypt.so'
sudo apt-get -y install gcc make autoconf libc-dev pkg-config
sudo apt-get -y install php7.2-dev
sudo apt-get -y install libmcrypt-dev
sudo pecl install mcrypt-1.0.1
I get:
pecl/mcrypt requires PHP (version >= 7.2.0, version <= 7.3.0, excluded versions: 7.3.0), installed version is 7.3.3-1+ubuntu14.04.1+deb.sury.org+1
No valid packages found
install failed
I use prestashop which require this

Answer 1

If anyone is using an AWS bitnami install w/ php7.3.10, the following is a layout with appropriate file paths (references listed below)
Check your PHP version
$ php -version
Install mcrypt extension
$ sudo apt-get -y install gcc make autoconf libc-dev pkg-config
$ sudo apt-get -y install libmcrypt-dev
If php version > 7.3.0
$ sudo pecl install mcrypt-1.0.2
Or the newest version: https://pecl.php.net/package/mcrypt
If php version <= 7.3.0
$ sudo pecl install mcrypt-1.0.1
When you are shown the prompt (Press [Enter] to autodetect)
> libmcrypt prefix? [autodetect] :
enable mcrypt in php.ini -> check if mcrypt is already in php.ini and maybe just needs to be uncommented
$ more /opt/bitnami/php/etc/php.ini | grep mcrypt
;extension=mcrypt.so
Add or uncomment extension=mcrypt.so in php.ini
$ emacs /opt/bitnami/php/etc/php.ini
REFERENCES...
https://lukasmestan.com/install-mcrypt-extension-in-php7-2/
How to install mcrypt on PHP 7.3.3 ubuntu
https://stackoverflow.com/a/55678046/2298002

Answer 2

You have to install version 1.0.2.
The error message clearly tells you 1.0.1 supports only PHP 7.2, not 7.3.
It's all documented on the official pecl/mcrypt page.
Release 1.0.2:
PHP Version: PHP version 7.4.0 or older
PHP Version: PHP 7.2.0 or newer
PEAR Package: PEAR 1.4.0 or newer
Release 1.0.1:
PHP Version: PHP version 7.3.0 or older
PHP Version: PHP 7.2.0 or newer
PEAR Package: PEAR 1.4.0 or newer

Answer 3

Use this, it's working perfectly in php-7.3:
sudo apt-get -y install gcc make autoconf libc-dev pkg-config
sudo apt-get -y install libmcrypt-dev
sudo pecl install mcrypt-1.0.1
Autodetect: HIT ENTER
sudo bash -c "echo extension=/usr/lib/php/[folder in your pc]/mcrypt.so > /etc/php/7.3/cli/conf.d/mcrypt.ini"
sudo bash -c "echo extension=/usr/lib/php/[folder in your pc]/mcrypt.so > /etc/php/7.3/apache2/conf.d/mcrypt.ini"
php -i | grep mcrypt

Answer 4

I have solved same issue in PHP Version : 7.4.3 Ubuntu Version : 20.04.1 LTS and nginx
sudo apt-get install php-pear php7.4-dev
sudo apt-get -y install gcc make autoconf libc-dev pkg-config
sudo apt-get -y install gcc make autoconf libc-dev pkg-config
sudo apt-get -y install libmcrypt-dev
You can choose your mcrypt version according to php version Read
sudo pecl install mcrypt-1.0.4
When you are shown the prompt
libmcrypt prefix? [autodetect] :
Press [Enter] to autodetect.
The output will be something like this.
Build process completed successfully
Installing '/usr/lib/php/20190902/mcrypt.so'
install ok: channel://pecl.php.net/mcrypt-1.0.4
configuration option "php_ini" is not set to php.ini location
You should add "extension=mcrypt.so" to php.ini
After success installing mcrypt using pecl, you should add extension=/usr/lib/php/20190902/mcrypt.so extension to php.ini.
I have added extension=/usr/lib/php/20190902/mcrypt.so in bellow files
/etc/php/7.4/fpm/php.ini
/etc/php/7.4/cli/php.ini
Restart You nginx because i am using nginx
systemctl restart nginx
You can also restart php-fpm
sudo service php7.4-fpm restart
Finally how can verify mycrpt is installed or not (Note close your terminal and open again)
php -m | grep mcrypt