WordPress shortcode snippet to display external files

I needed a quick way to automatically include external page content in my WordPress Rising Stars post.

There are two tables with latest plugin standings that are automatically generated and I wanted the post to be updated automatically when they update too.

Easiest way to accomplish this is through WordPress shortcode API with a simple code that you can add into the theme functions.php file:

Here is the code:

function show_file_func( $atts ) {
  extract( shortcode_atts( array(
    'file' => ''
  ), $atts ) );

  if ($file!='')
    return @file_get_contents($file);
}

add_shortcode( 'show_file', 'show_file_func' );

This allows you to write something like this anywhere in your post:

Last updated: August 31st, 2014

NumPluginAuthorScore
1Contact Form Builderhttp://web-dorado.com/394
2Responsive Photo GalleryWeblizar344
3Email SubscribersGopi Ramasamy320
4SiteOrigin Widgets BundleGreg Priday319
5Easy Facebook Like BoxSajid Javed314
6Double your Email Subscribers + Image Sharing + Quote Sharing by SumoMeAppSumo307
7AffinitomicsPrefrent304
8WP Responsive MenuNirmal Ram293
9Speed Booster PackTiguan277
10WP Tab WidgetMyThemeShop276
11PopupAllyNathalie Lussier Media Inc.270
12Youtube Widget ResponsiveStefanoAI270
13ARYO Activity LogYakir Sitbon, Maor Chasen, Ariel Klikstein269
14WP Shortcode by MyThemeShopMyThemeShop253
15Coming Soon PageBob Riley239
16Ultimate Under ConstructionMorrowmedia225
17Favicon by RealFaviconGeneratorPhilippe Bernard223
18Share Button MashshareRené Hermenau216
19Users UltraUsers Ultra215
20Responsive MenuPeter Featherstone209

The snippet above will automatically include the contents of given page into your post. Handy, isn't it?


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3 Comments

  1. Jan 2nd, 2013

    This is a very dangerous shortcode that could allow authors to read any file on the server filesystem. You can make it safer by using WP’s HTTP api instead of file_get_contents(), but it’ll still be dangerous.
    [ show_file file="/etc/passwd" ] !

  2. Mar 18th, 2011

    interesting code, thanks for always staying on top of things :)

  3. kevin
    Mar 3rd, 2011

    is there anyway to use this code to embed the remote file into a wordpress widget or the sidebar, instead of a post? Or maybe a wordpress plugin that keeps the last post on the homepage sticky, instead of the first like other plugins ive seen. thanks.

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