WordPress Version: 6.2
/**
* Retrieves the avatar URL.
*
* @since 4.2.0
*
* @param mixed $id_or_email The Gravatar to retrieve a URL for. Accepts a user_id, gravatar md5 hash,
* user email, WP_User object, WP_Post object, or WP_Comment object.
* @param array $args {
* Optional. Arguments to use instead of the default arguments.
*
* @type int $size Height and width of the avatar in pixels. Default 96.
* @type string $default URL for the default image or a default type. Accepts '404' (return
* a 404 instead of a default image), 'retro' (8bit), 'RoboHash' (robohash),
* 'monsterid' (monster), 'wavatar' (cartoon face), 'indenticon' (the "quilt"),
* 'mystery', 'mm', or 'mysteryman' (The Oyster Man), 'blank' (transparent GIF),
* or 'gravatar_default' (the Gravatar logo). Default is the value of the
* 'avatar_default' option, with a fallback of 'mystery'.
* @type bool $force_default Whether to always show the default image, never the Gravatar. Default false.
* @type string $rating What rating to display avatars up to. Accepts 'G', 'PG', 'R', 'X', and are
* judged in that order. Default is the value of the 'avatar_rating' option.
* @type string $scheme URL scheme to use. See set_url_scheme() for accepted values.
* Default null.
* @type array $processed_args When the function returns, the value will be the processed/sanitized $args
* plus a "found_avatar" guess. Pass as a reference. Default null.
* }
* @return string|false The URL of the avatar on success, false on failure.
*/
function get_avatar_url($id_or_email, $args = null)
{
$args = get_avatar_data($id_or_email, $args);
return $args['url'];
}