Common\Core\Form::getUploadMaxFileSize PHP Метод

    public static function getUploadMaxFileSize()
    {
        $uploadMaxFileSize = ini_get('upload_max_filesize');
        if ($uploadMaxFileSize === false) {
            return null;
        }
        // reformat if defined as an integer
        if (is_numeric($uploadMaxFileSize)) {
            return $uploadMaxFileSize / 1024 . 'MB';
        }
        // reformat if specified in kB
        if (mb_strtoupper(mb_substr($uploadMaxFileSize, -1, 1)) == 'K') {
            return mb_substr($uploadMaxFileSize, 0, -1) . 'kB';
        }
        // reformat if specified in MB
        if (mb_strtoupper(mb_substr($uploadMaxFileSize, -1, 1)) == 'M') {
            return $uploadMaxFileSize . 'B';
        }
        // reformat if specified in GB
        if (mb_strtoupper(mb_substr($uploadMaxFileSize, -1, 1)) == 'G') {
            return $uploadMaxFileSize . 'B';
        }
        return $uploadMaxFileSize;
    }