function get_the_title( $post = 0 ) {
  $post = get_post( $post );

  $post_title = isset( $post->post_title ) ? $post->post_title : '';
  $post_id    = isset( $post->ID ) ? $post->ID : 0;

  if ( ! is_admin() ) {
    if ( ! empty( $post->post_password ) ) {

      /* translators: %s: Protected post title. */
      $prepend = __( 'Protected: %s' );

      
/**
 * Filters the text prepended to the post title for protected posts.
 *
 * The filter is only applied on the front end.
 *
 * @since 2.8.0
 *
 * @param string  $prepend Text displayed before the post title.
 *                         Default 'Protected: %s'.
 * @param WP_Post $post    Current post object.
 */
      $protected_title_format = apply_filters( 'protected_title_format', $prepend, $post );

      $post_title = sprintf( $protected_title_format, $post_title );
    } elseif ( isset( $post->post_status ) && 'private' === $post->post_status ) {

      /* translators: %s: Private post title. */
      $prepend = __( 'Private: %s' );

      
/**
 * Filters the text prepended to the post title of private posts.
 *
 * The filter is only applied on the front end.
 *
 * @since 2.8.0
 *
 * @param string  $prepend Text displayed before the post title.
 *                         Default 'Private: %s'.
 * @param WP_Post $post    Current post object.
 */
      $private_title_format = apply_filters( 'private_title_format', $prepend, $post );

      $post_title = sprintf( $private_title_format, $post_title );
    }
  }

  
/**
 * Filters the post title.
 *
 * @since 0.71
 *
 * @param string $post_title The post title.
 * @param int    $post_id    The post ID.
 */
  return apply_filters( 'the_title', $post_title, $post_id );
}