How to use bloginfo_rss filter in WordPress

bloginfo_rss filter

To use bloginfo_rss filter, first you have to register it using add_filter. You can write this code into the functions.php of your activated theme or in a custom WordPress Plugin. WePlugins always prefers to create a custom WordPress Plugin while using hooks so nothing breaks when you update your WordPress Theme in the future.

In the example below, we have defined a function weplugins_modify_bloginfo_rss_defaults which takes 2 parameters and is registered using add_filter. The first parameter bloginfo_rss is the name of the hook, the second parameter weplugins_modify_bloginfo_rss_defaults is the name of the function that needs to be called, the third parameter is the priority of calling the hook if the same hook is used multiple times, and the last parameter is the number of arguments (if any) to be passed in the registered function.

Sometimes, you have to remove a registered hook, so you can use remove_filter to remove bloginfo_rss filter.

Parameters

Below are the 2 parameters required to use this hook.

• $rss_container : (string) RSS container for the blog information.
• $show : (string) The type of blog information to retrieve.

Live Example 1: Basic Usage

Below is an example of how you can use this hook.

    function weplugins_modify_bloginfo_rss_defaults($rss_container, $show) { 
        // Update the $rss_container variable according to your website requirements and return this variable. You can modify the $rss_container variable conditionally too if you want.
        return $rss_container; 
    }
    // add the filter
    add_filter( "bloginfo_rss", "weplugins_modify_bloginfo_rss_defaults", 10, 2 );
    

Live Example 2: Removing a Hook Callback

To remove a hook callback, use the example below.

    remove_filter( "bloginfo_rss", "weplugins_modify_bloginfo_rss_defaults", 10, 2 );
    

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

Live Example 3: Conditional Logic

Here’s how you can apply conditional logic within the hook function.

    function weplugins_modify_bloginfo_rss_conditional($rss_container, $show) { 
        if ($show == 'name') {
            $rss_container .= ' - Powered by WePlugins';
        }
        return $rss_container; 
    }
    // add the filter
    add_filter( "bloginfo_rss", "weplugins_modify_bloginfo_rss_conditional", 10, 2 );