我在wordpress中有一个短代码，下面是短代码的一部分→

[tm\\u single\\u image animation=“fadeInLeft”classname=“sub-banner1”图像=”http://trafficspinners.com/wp-content/uploads/2016/11/wedding-seating-chart-downloadable2.jpg“]

我想在这张图片中放置一个可点击的锚文本，请引导我。

小部件定义→

/*=============Sub Banner ============ */
function shortcode_subbanner($atts, $content = null)
{
    extract(shortcode_atts(array(
            \'image\' => \'\',
            \'padding\' => \'\',
            \'margin\' => \'\',
            \'height\' => \'\',
            \'width\' => \'\',
            \'class\' => \'\',
            \'link_url\' => \'\'    

        ), $atts));

        $variables  = \'\';
        $output = \'\';

        if(!empty($image)) :
            $variables .= \'padding:\'.$padding.\';\';
            $variables .= \'margin:\'.$margin.\';\';
        endif;

        $output .= \'<div class="sub-container \'.$class.\'" style="\'.$variables.\'">\';
        $output .= \'<div class="inner-image"><a href="\'.$link_url.\'" target="_Blank"><img src=\'.$image.\' height="\'.$height.\'" width="\'.$width.\'"></a></div>\'; 
        $output .= \'</div>\';
        return $output;
}
add_shortcode(\'subbanner\', \'shortcode_subbanner\');