How to use bloginfo_url filter in WordPress

bloginfo_url filter

Filters the URL returned by get_bloginfo().

To use bloginfo_url filter, first, you have to register it using add_filter. You can write this code into functions.php of your activated theme or in a custom WordPress Plugin.

We at WePlugins 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 weplugins_modify_bloginfo_url_defaults which takes 2 parameters and we registered using add_filter. The first parameter bloginfo_url is the name of the hook, the second parameter weplugins_modify_bloginfo_url_defaults is the name of the function which 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_url filter.

Parameters

Below are the 2 parameters required to use this hook.

• $output: (string) The URL returned by bloginfo().
• $show: (string) Type of information requested.

Live Example

apply_filters( 'bloginfo_url', string $output, string $show )

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

Example 1: Basic Usage

This example demonstrates the basic usage of the bloginfo_url filter.

  function weplugins_modify_bloginfo_url_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_url", "weplugins_modify_bloginfo_url_defaults", 10, 2 );
  

Example 2: Conditional Modification

This example shows how to modify the output conditionally based on the $show parameter.

  function weplugins_modify_bloginfo_url_conditionally($output, $show) {
      if ($show == 'url') {
          $output = 'https://custom-url.com';
      }
      return $output;
  }
  add_filter( "bloginfo_url", "weplugins_modify_bloginfo_url_conditionally", 10, 2 );
  

Example 3: Removing the Hook

To remove a hook callback, use the example below.

  remove_filter( "bloginfo_url", "weplugins_modify_bloginfo_url_defaults", 10, 2 );
  

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