Import JSON feed to WordPress

1. json_decode the JSON into an array.

   $slices = json_decode(file_get_contents('yourJSONFile.json'),true);
   

2. Loop into the data

   if ($slices) { 
      foreach ($slices as $slice) {
         $title = $slice[1];
         // insert more logic here
     }
   } 
   

3. Create a post programmatically by using wp_insert_post.

   // Create post object
   $my_post = array(
        'post_title'    =>  $title,
        'post_content'  => 'This is my content',
        'post_status'   => 'publish',
        'post_author'   => 1,
        'post_category' => array(8,39)
   );
   
   // Insert the post into the database and return the new post ID
   $post_id = wp_insert_post( $my_post, true );
   if ( is_wp_error( $post_id ) ) {
        // error handling....
   }
   

More details in this tutorial: http://tommcfarlin.com/programmatically-create-a-post-in-wordpress/