When inserting a gallery it adds the following shortcode:

[gallery columns="6" ids="18,150,146,23,147,17,21,20,22"]

I would like it to automatically add link="file" as the last attribute, whenever a shortcode is added. Like so:

[gallery columns="6" ids="18,150,146,23,147,17,21,20,22" link="file"]

You can hijack the shortcode handler and set the attribute to a value of your choice. Then call the native callback for this shortcode.

add_shortcode( 'gallery', 'file_gallery_shortcode' );

function file_gallery_shortcode( $atts )
    $atts['link'] = 'file';
    return gallery_shortcode( $atts );
  • I added this to my functions.php file, but it didn't work. I got this shortcode in the page. [gallery ids="144,139,140,138,133,131,127"] – Alexnl Apr 17 '13 at 22:05
  • It doesn’t change the post shortcode, but the attributes the shortcode handler gets. – fuxia Apr 17 '13 at 22:08
  • @Alexnl Click the check mark to mark the answer that solved your problem. – fuxia Apr 19 '13 at 4:59
  • This one solved the issue. I clicked the checkmark. But I have only tested up to 3.5 I will add a further comment once I test on 3.6 – Alexnl Sep 24 '13 at 14:13

There is a new shortcode_atts_{$shortcode} filter in WordPress 3.6 according to Mark Jaquith.

You could use the shortcode_atts_gallery filter to force the link='file' attribute:

function overwrite_gallery_atts_wpse_95965($out, $pairs, $atts){
    // force the link='file' gallery shortcode attribute:
    return $out;

when you have upgraded to 3.6.

You can check it out in /wp-includes/shortcodes.php from the Core-Trac-Trunk:


  • I'll try this when 3.6 is released at the end of April and I'll leave comment here on my success with it. – Alexnl Apr 17 '13 at 22:05
  • For some reason the link attribute is not passed to shortcode_atts, I filed a ticket here. – birgire Sep 24 '13 at 9:52
  • aha, a similar ticket has already been filed here, so hopefully this will work in version 3.7 – birgire Sep 24 '13 at 9:54

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