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25 thoughts on “New WP_Widget Class In WordPress 2.8”

  1. Lester, can you explain what the new WP_widget class means to us non-developers?
    What can the end user expect to see when this class gets implemented?

  2. For non-developers using WP, you can except multi-instances of all widgets even those plugin that has widgets provided that the plugin author has updated the code.

    Taking WP-Polls as an example, you can have 10 Polls Widget now instead of the usual 1.

  3. Hi
    Thanks for your guide. I have followed your guide and managed to create multiple instances of the plug-in and had then displayed them on different sidebars.
    But when I try to change the options on one widget on a sidebar … the changes will automatically apply to all the instances of widgets on all other sidebars!?
    Do you have an idea on how to allow the plug-in handle multiple instances of widgets? Or …
    Anyway, I have learnt a lot for the first time about Widget once read this guide. Thanks again
    Leon

  4. You should change `$title = attr($instance[‘title’]);` into `$title = esc_attr($instance[‘title’]);` on line 13.

    This issue could confuse some plugin developer.

  5. Lester,

    I’ve zipped the file and uploaded it using the 2.8.1 plugin page on my site. It says it uploaded successfully but I’m getting the error ‘plugin does not have a valid header’ when I try to activate it. Do you know what this is?

  6. Lester — thank you!! I have been all over the Internet and tried many tutorials for adding a WP2.8 widget to my plugin and nothing worked until I found your post. Thank you for sharing your code. It has helped me tremendously!

  7. LC, I am impressed. Speechless for this tutorial, I’ve been able to convert to this method and it saves time and code and gives us developers and blog users great flexibility. Thanks! Searched the whole Google but didnt find something close to this tutorial. Its straightforward and simple.

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