including image assets in widget

It sounds like you’ll need the plugins_url() function which generates the URL for the plugins directory and can handle any alternate configuration (such as if you moved it to the /mu-plugins/ directory, a personal favorite of mine). The Codex documentation is good, but here’s a quick example.

Let’s say you’re making this in a plugin that in /wp-content/plugins/my_awesome_widget/.
To make the example slightly more interesting, you store all associated images in /wp-content/plugins/my_awesome_widget/assets/images/.
- Your image is called company_logo.png.
In the root plugin directory is your main plugin PHP file which needs to reference the widget.

So to get the image, you’d use a snippet like this:

<?php printf(
    '<img src="https://wordpress.stackexchange.com/questions/98621/%1$s" alt="{YOUR COMPANY} logo" />',
    plugins_url( '/assets/images/company_logo.png', __FILE__ )
); ?>

If all goes well, that will print out:

<img src="http://example.com/wp-content/plugins/my_awesome_widget/assets/images/company_logo.png" alt="{YOUR COMPANY} logo" />

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