Installing mcrypt on PHP 7.2, 7.3, or 7.4
If you are using PHP 7.2, 7.3, or 7.4, you can install mcrypt using the PECL command. PECL is a repository of PHP extensions that can be easily installed and updated. To use PECL, you need to have some tools and libraries installed on your system, such as gcc, make, autoconf, libc-dev, pkg-config, and libmcrypt-dev. You can install them using the following commands in the command prompt:
sudo apt-get -y install gcc make autoconf libc-dev pkg-config sudo apt-get -y install libmcrypt-dev
After installing the required tools and libraries, you can run the following command to install mcrypt:
sudo pecl7.2-sp install --nodeps mcrypt-snapshot
This will download and compile the mcrypt extension for PHP 7.2. You can replace 7.2 with 7.3 or 7.4 if you are using a different version of PHP. The --nodeps option tells PECL to ignore any dependencies that may cause errors during installation.
Once the installation is complete, you need to enable the extension by adding the following line to your php.ini file:
extension=mcrypt
You can find your php.ini file in your PHP installation directory, usually C:\php or C:\xampp\php. You may need to restart your web server for the changes to take effect.
Installing mcrypt on PHP 5.x or XAMPP
If you are using PHP 5.x or XAMPP, you can install mcrypt by downloading the pre-compiled DLL file and copying it to your PHP extension directory. You can find the suitable version for your system from [here]. For example, if you are using PHP 5.6 (TS, VC11) on Windows 10 (64 bit), you can download php_mcrypt-1.0.1-5.6-ts-vc11-x64.zip.
After downloading the zip file, extract it and copy php_mcrypt.dll to your PHP extension directory, usually C:\php\ext or C:\xampp\php\ext. Then, enable the extension by adding the following line to your php.ini file:
extension=php_mcrypt.dll
You may need to restart your web server for the changes to take effect.
Conclusion
In this article, we have shown you how to download and install the mcrypt extension for PHP on Windows. Mcrypt is a useful extension that provides encryption and decryption functions using various algorithms. However, it is not included in the default PHP installation on Windows, so you need to install it manually. You can use either PECL or DLL files depending on your version of PHP and XAMPP.
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