public static function checkPhpVersion()
    {
        $version = null;

        if (\defined('PHP_VERSION')) {
            $version = PHP_VERSION;
        } else {
            $version = phpversion('');
        }

        //Case management system of ubuntu, php version return 5.2.4-2ubuntu5.2
        if (strpos($version, '-') !== false) {
            $version = substr($version, 0, strpos($version, '-'));
        }

        return $version;
    }