disable-search-query.php

<?php
/**************************************************************************
Plugin Name:  Disable Search Query
Description:  Disables Search Queries in URL
Version:      0.0.1
Author:       Fastmover
**************************************************************************/




class SK_Disable_Search_Query {

    public function __construct() {

        add_action( 'parse_query', array( $this, 'filterQuery' ) );
        add_filter( 'get_search_form', create_function( '$a', "return null;" ) );

    }

    public function filterQuery( $query, $error = true )
    {

        if ( is_search() ) {
            $query->is_search = false;
            $query->query_vars['s'] = false;
            $query->query['s'] = false;

///////////// Uncomment the next 2 lines to enable showing a 404 when someone tries to search
//            if ( $error == true )
//                $query->is_404 = true;

        }

    }

}


$SKDisableSearchQuery = new SK_Disable_Search_Query();