How to use bloginfo filter in WordPress

bloginfo filter

Filters the site information returned by get_bloginfo(). To use the bloginfo 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.

At WePlugins, we always prefer to create a custom WordPress Plugin while using hooks so nothing breaks when you update your WordPress Theme in the future.

In the below live example, we have defined a function modify_bloginfo_defaults which takes 2 parameters, and we registered it using add_filter. The first parameter bloginfo is the name of the hook. The second parameter modify_bloginfo_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 the bloginfo filter.

Parameters

Below are the 2 parameters required to use this hook.

• $output : (mixed) The requested non-URL site information.
• $show : (string) Type of information requested.

Live Example

apply_filters( 'bloginfo', mixed $output, string $show )

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

Example 1: Modify Blog Info Output

In this example, we modify the blog info output by using the modify_bloginfo_defaults function.

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

Example 2: Conditional Output Modification

In this example, we conditionally modify the blog info output based on the $show parameter.

function weplugins_conditional_bloginfo($output, $show) { 
    if ($show === 'name') {
        $output = 'My Custom Blog Name';
    }
    return $output; 
}
// add the filter
add_filter( "bloginfo", "weplugins_conditional_bloginfo", 10, 2 );

Example 3: Remove Blog Info Filter

To remove a hook callback, use the example below.

remove_filter( "bloginfo", "weplugins_modify_bloginfo_defaults", 10, 2 );

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

Contact Us

If you’re having any trouble using this hook or need customization, please contact our team and we’d be happy to assist you.