CMS-CSE/core/class/git.class.php

<?php 

class git
{
    public static function getVersion()
    {
        $commitHash = trim(exec('git log --pretty="%h" -n1 HEAD'));

        $commitDate = new \DateTime(trim(exec('git log -n1 --pretty=%ci HEAD')));
        $commitDate->setTimezone(new \DateTimeZone('UTC'));

        return sprintf('%s (%s)', $commitHash, $commitDate->format('Y-m-d H:i:s'));
    }
}