Wordpress: WP_Query how to apply search criteria with custom post type

Question

I have a custom post type, photo, and need to search for photos matching the title or description with the search keyword with various criteria: contains LIKE

Answer 1

Pass your search string here example like this ( 's'=>'test' )

 'test' ) */
 $args=array('s'=>'test','order'=> 'DESC', 'posts_per_page'=>get_option('posts_per_page'));

   $query=new WP_Query($args);

  if( $query->have_posts()): 

  while( $query->have_posts()): $query->the_post();

 {
   echo $post->post_title;
   echo $post->post_content;
 }

 endwhile; 
 else:
 endif;

 ?>