Version date from .git

/**
* Gets the last commit date from .git repository
* @param string $gitLocation location of .git/logs/HEAD
* @return string date of last commit YYYY-mm-dd
*/
function gitLastCommitInfo($gitLocation)
{
	$commitArray = file($gitLocation);                    // All commits from file
	$lastCommit = array_pop($commitArray);                // Latest commit
	$lastCommitArray = explode("\t", $lastCommit);        
	$lastCommitArray2 = explode(" ", $lastCommitArray[0]);
	$pop = array_pop($lastCommitArray2);                  // Remove last array item
	return date("Y-m-d", array_pop($lastCommitArray2));   // Format date from second-to-last array item
}