interface QueryPlaceholderInterface

backdrop_class_list in core/includes/bootstrap.classes.inc

Lists all the classes used by Backdrop core.

interface QueryPlaceholderInterface {

  /**
   * Returns a unique identifier for this object.
   */
  public function uniqueIdentifier();

  /**
   * Returns the next placeholder ID for the query.
   *
   * @return
   *   The next available placeholder ID as an integer.
   */
  public function nextPlaceholder();
}