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Add Signature Plugin for WordPress · Dagon Design

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Version 1.32   Updated Wednesday, July 1st, 2009 at 8:20pm

Add Signature Plugin for WordPress

This plugin lets you display a custom signature at the bottom of your posts. Simply type the text you want in the options page and configure it to display on every post, or manually display it by adding the trigger text wherever you like. You can also add in author information using the included variables – login name, first name, last name, nickname, email address, website, and description/bio. It get this information from the author’s account settings. It currently supports up to three different signature templates.


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  • Download the above file, rename it from .txt to .php, and upload it to your plugins directory.
  • Enable the plugin.
  • Configure the plugin options (under DDAddSig).
  • Test it out by viewing a post.

Change Log

  • 07-01-09 Version 1.32 – Fixed bug when using more than 3 sigs. Sigs are now wrapped in a div with the class ddsig_wrap.
  • 02-17-09 Version 1.31 – Added five extra signature fields (7 total now), updated display of options.
  • 09-22-07 Version 1.3 – Added two extra signature fields. Added ‘Load Default Options’ button. Added option to display signature on search pages.
  • 11-27-06 Version 1.2 – Added option to show the signature on date/category archive pages.
  • 07-26-06 Version 1.1 – You can now choose to show the signature on the index, posts, and/or pages.
  • 07-23-06 Version 1.0 – First release.


You can use HTML and CSS in your signatures. The following variables can also be used to display author information (they are case-sensitive):

  • %LOGIN% – Login name
  • %FIRST% – First name
  • %LAST% – Last name
  • %NICK% – Nickname
  • %EMAIL% – Email address
  • %URL% – Website
  • %DESC% – Description/Bio

Standard Usage

To show the signature on a post or page, simply type in the proper trigger text.

Primary signature:
<!-- ddsig -->

Signature 2:
<!-- ddsig2 -->

Signature 3:
<!-- ddsig3 -->


Note: Be sure you enter the trigger text using the ‘Code View’ in WordPress – not the new visual text editor.

Automatic Usage

If you prefer, you can have the plugin automatically display the signature on the pages you specify with the options below. Note: These options only apply to the primary signature.

Display on index page
When enabled, this option will show the signature after each post on your index page.

Display on posts
When enabled, this option will show the signature on each single post page.

Display on static pages
When enabled, this option will show the signature on each static page.

Display on archive pages
When enabled, this option will show the signature on each archive page. This includes both date and category archives.

Display on search pages
When enabled, this option will show the signature on each search results page.

Other Uses

What if you want to show an image of the author at the bottom of the posts? Standard WordPress profiles do not include an option for an author image, but it is easy to do with this plugin.

Just add something like this to your signature field:

<img src="/authors/%NICK%.jpg" />

Then all you have to do is create an ‘authors’ directory on your server, containing an image for each author (with their nickname for the filename).


Disable automatic line breaks in signatures
Find this code in the script:
$ddsig_data = get_option('ddsig_data');After it, add the following:
$ddsig_data = str_replace(array("\n","\r"), array("", ""), $ddsig_data);That will strip out the newline/return characters from the signature. To do the same to the other signature fields, just duplicate that line with the other variable names (ddsig_data2, etc..)

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