functions.php

/*view counter code */
function pp_getPostViews($postID){
   $count_key = 'post_views_count';
   $count = get_post_meta($postID, $count_key, true);
   if($count==''){
     delete_post_meta($postID, $count_key);
     add_post_meta($postID, $count_key, '0');
     return "0 View";
   }
   return $count.' Views';
}
function pp_setPostViews($postID) {
  $count_key = 'post_views_count';
  $count = get_post_meta($postID, $count_key, true);
  if($count==''){
     $count = 0;
   delete_post_meta($postID, $count_key);
   add_post_meta($postID, $count_key, '0');
  }
 else{
   $count++;
 update_post_meta($postID, $count_key, $count);
 }
}