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How to use network_home_url filter in WordPress

Sandeep Kumar Mishra
Sandeep Kumar Mishra
September 10, 2022
5 minutes read

network_home_url filter

Filters the network home URL.

To use the network_home_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_network_home_url_defaults which takes 3 parameters and we registered using add_filter. The first parameter network_home_url is the name of the hook, the second parameter weplugins_modify_network_home_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 the network_home_url filter.

Parameters

    Below are the 3 parameters required to use this hook.

  • $url: (string) The complete network home URL including scheme and path.
  • $path: (string) Path relative to the network home URL. Blank string if no path is specified.
  • $orig_scheme: (string|null) Scheme to give the URL context. Accepts ‘http’, ‘https’, ‘relative’ or null.

Live Example

apply_filters( 'network_home_url', string $url, string $path, string|null $orig_scheme )

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

Example 1: Basic Usage

This example demonstrates a basic usage of the filter where the URL is returned as is.

    function weplugins_modify_network_home_url_defaults($url, $path, $orig_scheme) { 
        // Update the $url variable according to your website requirements and return this variable.
        // You can modify the $url variable conditionally too if you want.
        return $url; 
    }
    // add the filter
    add_filter( "network_home_url", "weplugins_modify_network_home_url_defaults", 10, 3 );
    

Example 2: Conditionally Modify URL

In this example, the URL is modified based on certain conditions.

    function weplugins_modify_network_home_url_defaults($url, $path, $orig_scheme) {
        if ($path === 'special-path') {
            $url = 'https://special.example.com';
        }
        return $url;
    }
    // add the filter
    add_filter( "network_home_url", "weplugins_modify_network_home_url_defaults", 10, 3 );
    

Example 3: Remove the Hook

To remove a hook callback, use the example below.

    remove_filter( "network_home_url", "weplugins_modify_network_home_url_defaults", 10, 3 );
    

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

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Sandeep Kumar Mishra

Sandeep Kumar Mishra

Sandeep Kumar Mishra writes about WordPress and Artificial Intelligence, offering tips and guides to help you master your website and stay updated with the latest tech trends.

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