searchwp\auto_update_providers hook example

searchwp-customizations.php

<?php

// Tell SearchWP to automatically update its providers when switching sites.
// @link https://searchwp.com/documentation/hooks/searchwp-auto_update_providers/
add_filter( 'searchwp\auto_update_providers', '__return_true' );

// Retrieve results from this site.
$searchwp_site_1 = new \SWP_Query( [
  's' => 'coffee',
] );

// Retrieve results from site 2.
switch_to_blog( 2 );

$searchwp_site_2 = new \SWP_Query( [
  's' => 'coffee',
] );

// Restore the original site.
restore_current_blog();