Ranomize SearchWP 4 results (with pagination)

searchwp-customizations.php

<?php

// In order to paginate randomized results, we need a seed.
add_action( 'init', function() {
  if ( ! isset( $_COOKIE['seed'] ) ) {
    setcookie( 'seed', rand(), 0, COOKIEPATH, COOKIE_DOMAIN );
  }
} );

// Tell SearchWP to randomize the results based on the stored seed.
add_filter( 'searchwp\query\mods', function( $mods ) {
  $seed = isset( $_COOKIE['seed'] ) ?: 0;
  
  $mod = new \SearchWP\Mod();
  $mod->order_by( "RAND($seed)", '', 1 );

  $mods[] = $mod;

  return $mods;
} );