How to change the number of entries on the search page in WordPress

By default, the number of entries on the search results page in WordPress is taken from the read settings in the admin. You can change this global request by using the pre_get_posts hook. In the example below, we’ll set it to display 50 entries on the search.php search results page:

// Set 50 posts in the search results.
add_action( 'pre_get_posts', 'change_amount_posts_on_search_page', 1 );
function change_amount_posts_on_search_page( $query ) {
	// Exit if it is an admin panel or not a basic request.
	if ( is_admin() || !$query->is_main_query() ) {
		return;
	}

	if ( $query->is_search() ) {
		$query->set( 'posts_per_page', 50 );
	}

}