How to use icon_dir_uri filter in WordPress

Let’s dive into the world of WordPress hooks with a focus on the icon_dir_uri filter. This is a crucial filter for anyone looking to modify the icon directory URI in their WordPress site. You can easily integrate it into your theme’s functions.php file or, as many prefer, create a custom WordPress Plugin for better maintainability.

Example 1: Basic Usage of icon_dir_uri Filter

Here’s a simple example to illustrate how you can use the icon_dir_uri filter in your project. The function weplugins_modify_icon_dir_uri_defaults will allow you to adjust the URI as needed.

    function weplugins_modify_icon_dir_uri_defaults($uri) { 
        // Update the $uri variable according to your website requirements and return this variable. 
        // You can modify the $uri variable conditionally too if you want.
        return $uri; 
    }
    // add the filter
    add_filter( "icon_dir_uri", "weplugins_modify_icon_dir_uri_defaults", 10, 1 );
    

Example 2: Conditional Modification of URI

Sometimes, you might want to change the icon directory URI based on certain conditions. Here’s how you can achieve that.

    function weplugins_modify_icon_dir_uri_conditionally($uri) { 
        if (is_admin()) {
            $uri = '/custom-admin-icons/';
        }
        return $uri; 
    }
    // add the filter
    add_filter( "icon_dir_uri", "weplugins_modify_icon_dir_uri_conditionally", 10, 1 );
    

Example 3: Removing the icon_dir_uri Filter

If you need to remove a filter, use the remove_filter function with the same parameters you used to add it. This example shows how to remove the weplugins_modify_icon_dir_uri_defaults function.

    remove_filter( "icon_dir_uri", "weplugins_modify_icon_dir_uri_defaults", 10, 1 );
    

Please make sure to provide the same callback function name, priority, and number of arguments while removing the hook callback.

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