Method tooltip

/**
 * Creates a tooltip with an image as button
 *
 * @param   string  $tooltip  The tip string.
 * @param   mixed   $title    The title of the tooltip or an associative array with keys contained in
 *                            {'title','image','text','href','alt'} and values corresponding to parameters of the same name.
 * @param   string  $image    The image for the tip, if no text is provided.
 * @param   string  $text     The text for the tip.
 * @param   string  $href     A URL that will be used to create the link.
 * @param   string  $alt      The alt attribute for img tag.
 * @param   string  $class    CSS class for the tool tip.
 *
 * @return  string
 *
 * @since   1.5
 */
public static function tooltip($tooltip, $title = '', $image = 'tooltip.png', $text = '', $href = '', $alt = 'Tooltip', $class = 'hasTooltip')
{
    if (\is_array($title)) {
        foreach (array('image', 'text', 'href', 'alt', 'class') as $param) {
            if (isset($title[$param])) {
                ${$param} = $title[$param];
            }
        }
        if (isset($title['title'])) {
            $title = $title['title'];
        } else {
            $title = '';
        }
    }
    if (!$text) {
        $alt = htmlspecialchars($alt, ENT_COMPAT, 'UTF-8');
        $text = static::image($image, $alt, null, true);
    }
    if ($href) {
        $tip = '<a href="' . $href . '">' . $text . '</a>';
    } else {
        $tip = $text;
    }
    if ($class === 'hasTip') {
        // Still using MooTools tooltips!
        $tooltip = htmlspecialchars($tooltip, ENT_COMPAT, 'UTF-8');
        if ($title) {
            $title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8');
            $tooltip = $title . '::' . $tooltip;
        }
    } else {
        $tooltip = self::tooltipText($title, $tooltip, 0);
    }
    return '<span class="' . $class . '" title="' . $tooltip . '">' . $tip . '</span>';
}