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   1  <?php
   2  /**
   3   * Event dispatcher
   4   *
   5   * @package Requests
   6   * @subpackage Utilities
   7   */
   8  
   9  /**
  10   * Event dispatcher
  11   *
  12   * @package Requests
  13   * @subpackage Utilities
  14   */
  15  interface Requests_Hooker {
  16      /**
  17       * Register a callback for a hook
  18       *
  19       * @param string $hook Hook name
  20       * @param callback $callback Function/method to call on event
  21       * @param int $priority Priority number. <0 is executed earlier, >0 is executed later
  22       */
  23  	public function register($hook, $callback, $priority = 0);
  24  
  25      /**
  26       * Dispatch a message
  27       *
  28       * @param string $hook Hook name
  29       * @param array $parameters Parameters to pass to callbacks
  30       * @return boolean Successfulness
  31       */
  32  	public function dispatch($hook, $parameters = array());
  33  }