Using WordPress ‘pre_user_url’ PHP filter

‘pre_user_url’ is a WordPress filter that lets you modify a user’s URL before the user is created or updated.

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This can be useful for sanitizing or customizing the URL in various ways.

Usage

To use the filter, add the following code to your theme’s functions.php file or a custom plugin:

add_filter('pre_user_url', 'your_function_name', 10, 1);
function your_custom_function( $raw_user_url ) { 
// Your custom code here 
}

Parameters

• $raw_user_url (string) – The user’s URL that you want to filter.

Examples

Make all URLs HTTPS

function make_https($raw_user_url) {
    return preg_replace('/^http:/', 'https:', $raw_user_url);
}
add_filter('pre_user_url', 'make_https', 10, 1);

This code example replaces the “http” protocol with “https” for all user URLs.

Add www to URLs

function add_www($raw_user_url) {
    return preg_replace('/^https?:///', '$0www.', $raw_user_url);
}
add_filter('pre_user_url', 'add_www', 10, 1);

This code example adds “www.” to the beginning of user URLs if it’s not already there.

Remove trailing slashes from URLs

function remove_trailing_slash($raw_user_url) {
    return rtrim($raw_user_url, '/');
}
add_filter('pre_user_url', 'remove_trailing_slash', 10, 1);

This code example removes any trailing slashes from the user URLs.

Remove query strings from URLs

function remove_query_strings($raw_user_url) {
    return strtok($raw_user_url, '?');
}
add_filter('pre_user_url', 'remove_query_strings', 10, 1);

This code example removes query strings from the user URLs, keeping only the base URL.

Replace certain domain with another

function replace_domain($raw_user_url) {
    return str_replace('olddomain.com', 'newdomain.com', $raw_user_url);
}
add_filter('pre_user_url', 'replace_domain', 10, 1);

This code example replaces “olddomain.com” with “newdomain.com” in the user URLs.