Title: Why isn’t this function working?
Last modified: August 19, 2016

---

# Why isn’t this function working?

 *  Resolved [tribalcomm](https://wordpress.org/support/users/tribalcomm/)
 * (@tribalcomm)
 * [16 years, 7 months ago](https://wordpress.org/support/topic/why-isnt-this-function-working/)
 * I have a site with multiple sidebars and I am making a widget that has some javascript
   in it that will only be on some pages. I am trying to set it up so that, if the
   widget is active on a page (through the sidebar that is loading in the template),
   it will add the javascript to the header. My current code is:
 *     ```
       <?php
       function TCWidget(){
          $widget_ops = array('classname' => 'widget_tc', 'description' => __( "My widget") );
          $control_ops = array('width' => 200, 'height' => 150);
          $this->WP_Widget('tcwidget', __('TC Widget'), $widget_ops, $control_ops);
   
          if ( is_active_widget() )
             add_action('wp_head', 'tc_widget_header');
       }
   
       function tc_widget_header() { ?>
          <script type="text/javascript" language="javascript" src="myscript.js"></script>
       <?php
       }
       ```
   
 * The problem is the script never appears in the header, whether the widget is 
   in the sidebar or not.
 * Please help, as this is driving me insane!!!
 * Thanks!

Viewing 5 replies - 1 through 5 (of 5 total)

 *  [s_ha_dum](https://wordpress.org/support/users/apljdi/)
 * (@apljdi)
 * [16 years, 7 months ago](https://wordpress.org/support/topic/why-isnt-this-function-working/#post-1258467)
 * Have you tried `wp_print_scripts` instead of `wp_head`?
 *  Thread Starter [tribalcomm](https://wordpress.org/support/users/tribalcomm/)
 * (@tribalcomm)
 * [16 years, 7 months ago](https://wordpress.org/support/topic/why-isnt-this-function-working/#post-1258511)
 * I am trying that, but I realized that the is_active_widget will put it in the
   header of every page as long as the widget is active anywhere, but this is preloading
   a bunch of images, so I don’t want it on any page but the ones where the widget
   is displayed.
 * I am trying wp_print_scripts, but it still isn’t showing. I am trying to add 
   it to the actual widget code, so it runs when the widget is displayed. It this
   possible?
 * i.e.
 *     ```
       function widget($args, $instance){
       	extract($args);
       # Make the widget
       ?>
       <?php echo $before_widget; ?>
       <?php
       	wp_print_scripts ('myscript', WP_PLUGIN_URL . "/myplugin/scripts/myscript.js");
       ?>
       Widget content here
       ```
   
 *  [s_ha_dum](https://wordpress.org/support/users/apljdi/)
 * (@apljdi)
 * [16 years, 7 months ago](https://wordpress.org/support/topic/why-isnt-this-function-working/#post-1258529)
 * I meant to try to use wp_print_scripts in your add_action– `add_action('wp_print_scripts','
   tc_widget_header');`.
 * Functions like is_page() will work inside the widgets. For example, `if (is_page('
   directory')) echo 'directory';` will only echo content when on the ‘directory’
   page.
 *  Thread Starter [tribalcomm](https://wordpress.org/support/users/tribalcomm/)
 * (@tribalcomm)
 * [16 years, 7 months ago](https://wordpress.org/support/topic/why-isnt-this-function-working/#post-1258593)
 * Nothing seems to be working with this…
 * where should I put it so that it loads only on the pages that the widget is actually
   displayed?
 *  Thread Starter [tribalcomm](https://wordpress.org/support/users/tribalcomm/)
 * (@tribalcomm)
 * [16 years, 7 months ago](https://wordpress.org/support/topic/why-isnt-this-function-working/#post-1258594)
 * SOLVED!
 * I put `add_action('wp_head', array(&$this, 'tc_widget_header') );` into the widget
   contruct function then defined the function echoing all the scripts I need, and
   now it is loading only on the pages that the widget is displayed.
 * Thanks!!!

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Why isn’t this function working?’ is closed to new replies.

## Tags

 * [function](https://wordpress.org/support/topic-tag/function/)
 * [header](https://wordpress.org/support/topic-tag/header/)
 * [script](https://wordpress.org/support/topic-tag/script/)
 * [widget](https://wordpress.org/support/topic-tag/widget/)

 * 5 replies
 * 2 participants
 * Last reply from: [tribalcomm](https://wordpress.org/support/users/tribalcomm/)
 * Last activity: [16 years, 7 months ago](https://wordpress.org/support/topic/why-isnt-this-function-working/#post-1258594)
 * Status: resolved

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