The preferred installation method is via » Composer.
To install via Composer, first download Composer, if you have not already, then simply run the following commands in your project's main directory:
$ php ./path/to/composer.phar require daniel-ac-martin/php-seids $ php ./path/to/composer.phar install
The classes provided by this library can then be autoloaded using the autoloader provided by Composer in "./vendor/autoload.php".