Rewrite url search wp

functions.php

<?php
/**
 * Search rewrite url -> save this in function.php
 *
 * @package WordPress
 * @subpackage Imagefinder
 * @since Imagefinder 1.0.0
 */
if ( !function_exists( 'warrior_search_url_rewrite ') ) {
	function warrior_search_url_rewrite() {
	    if ( is_search() && ! empty( $_GET['s'] ) ) {
	        wp_redirect( home_url( "/search/" ) . urlencode( get_query_var( 's' ) ) );
	        exit();
	    }   
	}
}
add_action( 'template_redirect', 'warrior_search_url_rewrite' );

?>

search.php

<?php
/**
 * The template for displaying posts in the search results.
 *
 * @package WordPress
 * @subpackage Imagefinder
 * @since Imagefinder 1.0.0
 */

get_header();
	global $query_string;
	$get_search_result = get_query_var( 's' ); // get url modivications in functions.php

?>

 	<div id="item-list" class="row">
     	<?php
		// The loop search
        $search['post_type'] = 'photo';
        $search['s'] 		 = $get_search_result;
		query_posts( $search );
		if ( have_posts() && !empty( $get_search_result ) ) :
			while ( have_posts() ) :
				the_post(); ?>

				<div class="col-lg-4 col-md-4 col-sm-4 gallery-img">
					<div class="inner">
						<div class="gallery-overlay">
							<div class="overlay-content">
								<a href="<?php the_permalink(); ?>"><?php _e( 'View Image', 'imagefinder' ); ?></a>
							</div>
						</div>
						<a href="<?php the_permalink(); ?>"><?php the_post_thumbnail( 'post-thumbnail' ); ?></a>
					</div>
				</div>

			<?php endwhile;		
		else :
			_e( 'Sorry, no listings matched your criteria, please try again for valid keywords.', 'imagefinder' );
		endif;

		get_template_part( 'includes/pagination' ); // include pagination
		echo $get_search_result;
	?>

	<span class="label"><?php the_tags( __( '<b>Tags:</b> ', 'imagefinder' ) , ',&nbsp;', '' ); ?></span>
           
</div>

<?php get_footer(); ?>