searchwp-mod-hook.php

<?php
// @link https://searchwp.com/documentation/classes/searchwp-mod/
add_filter( 'searchwp\query\mods', function( $mods, $query ) {
	// Retrieve Source name to use with Mod.
	$source = \SearchWP\Utils::get_post_type_source_name( 'post' );

	// Build Mod to exclude Post ID 145 and Post ID 211.
	$mod = new \SearchWP\Mod( $source );
	$mod->set_where( [ [
		'column'  => 'id',
		'value'   => [ 145, 211 ],
		'compare' => 'NOT IN',
		'type'    => 'NUMERIC',
	] ] );
  
	$mods[] = $mod;
  
	return $mods;
}, 20, 2 );

// Execute search for 'coffee' using Mod enqueued above.
$search = new \SearchWP\Query( 'coffee' );

$results = $search->results; // Array of results.