Category Post Shortcode with facebook like.php

<?php

/*
  Plugin Name: category post shortcode
  Plugin URI: http://ibnuyahya.com/wordpress-plugins/category-post-shortcode/
  Description: To display post by category in your page/post
  Author: ibnuyahya
  Author URI: http://ibnuyahya.com/
  Version: 2.3
 */

/*
 *
 * How to use
 * =============================================================================
 * just put this shortcode in your post or pages
 *
 *    [cat totalposts="3" category="1,3" thumbnail="true" excerpt="true" ]
 *
 * totalposts - your total number of post to display. default is -1
 * category   - category id. use comma , for multiple id
 * thumbnail  - set true if you want to display thumbnail. default is false
 * thumbnail_height - image size for the thumbnail. default is 130
 * thumbnail_width - image size for the thumbnail. default is 130
 * excerpt    - set true if you want to display excertp. default is true
 * orderby    - your post will order by . default post_date . check http://codex.wordpress.org/Template_Tags/get_posts for detail
 * order      - asc | desc
 *
 * thumbnail 
 * =============================================================================
 * create custom field key as thumbnail-url and put your thumbnail url in the value area
 *
 * style at your own
 * =============================================================================
 * you need to style your category-post-shortcode plugin in your style.css example

  .cat-post{
  width:100%;
  }
  .cat-post-list{
  display: block;
  margin-bottom: 20px;
  position: relative;

  }
  .cat-post-images{
  float:left;
  width:140px;
  display:block;
  }

  .cat-content{
  width:350px;
  float:right;
  }
  .cat-post-title{
  display: block;
  width:100%;
  }
  .cat-clear{
  clear:both;
  }

 */

function cat_func($atts) {
    extract(shortcode_atts(array(
                'class_name' => 'cat-post',
                'totalposts' => '-1',
                'category' => '',
                'thumbnail' => 'false',
                'thumbnail_height' => '130',
                'thumbnail_width' => '130',
                'excerpt' => 'true',
                'orderby' => 'post_date',
                'order' => 'desc'
                    ), $atts));

    $output = '<div class="' . $class_name . '">';
    global $post;
    $tmp_post = $post;
    $myposts = get_posts("numberposts=$totalposts&category=$category&orderby=$orderby&order=$order");

    foreach ($myposts as $post) {
        setup_postdata($post);
        $output .= '<div class="cat-post-list">';
        if ($thumbnail == 'true') {
            $thumb_image = get_post_meta($post->ID, 'thumbnail-url', true);
            if (empty($thumb_image)) {
                preg_match_all('/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $post->post_content, $matches);
                $thumb_image = $matches [1] [0];
            }
            if (empty($thumb_image)) {
                $thumb_image = '';
            }

            $output .= '<div class="cat-post-images"><img height="' . $thumbnail_height . '" width="' . $thumbnail_width . '" src="' . $thumb_image . '" /></div>';
        }
        $output .= '<div class="cat-content"><span class="cat-post-title"><a href="' . get_permalink() . '">' . get_the_title() . '</a></span>';
        if ($excerpt == 'true') {
            $output .= '<span class="cat-post-excerpt">' . get_the_excerpt() . '</span>';
        }

        $output .= '<br/><iframe src="//www.facebook.com/plugins/like.php?href=' . get_permalink() . '&amp;send=false&amp;layout=button_count&amp;width=450&amp;show_faces=false&amp;action=like&amp;colorscheme=light&amp;font&amp;height=21&amp;" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:450px; height:21px;" allowTransparency="true"></iframe>';
        $output .= '</div>
            <div class="cat-clear"></div>
        </div>';
    };
    $output .= '</div>';

    $post = $tmp_post;
    wp_reset_query();
    return $output;
}

add_shortcode('cat', 'cat_func');
?>