original_string: public function execute()
      {
          $registered = false;
          if (self::$interceptor_stack === null)
          {
              $registered = true;
              self::registerErrorHandler();
          }
              
          array_push(self::$interceptor_stack, $this);
          $response = null;
          try
          {
              $response = call_user_func_array($this->func, func_get_args());
          }
          finally
          {
              array_pop(self::$interceptor_stack);
  
              if ($registered)
                  self::unregisterErrorHandler();
          }
          return $response;
      }
code: public function execute()
      {
          $registered = false;
          if (self::$interceptor_stack === null)
          {
              $registered = true;
              self::registerErrorHandler();
          }
              
          array_push(self::$interceptor_stack, $this);
          $response = null;
          try
          {
              $response = call_user_func_array($this->func, func_get_args());
          }
          finally
          {
              array_pop(self::$interceptor_stack);
  
              if ($registered)
                  self::unregisterErrorHandler();
          }
          return $response;
      }
code_tokens: public function execute ( ) { $ registered = false ; if ( self :: $ interceptor_stack === null ) { $ registered = true ; self :: registerErrorHandler ( ) ; } array_push ( self :: $ interceptor_stack , $ this ) ; $ response = null ; try { $ response = call_user_func_array ( $ this -> func , func_get_args ( ) ) ; } finally { array_pop ( self :: $ interceptor_stack ) ; if ( $ registered ) self :: unregisterErrorHandler ( ) ; } return $ response ; }
docstring: Execute the configured callback
  @params Any parameters to pass to the callback
  @return mixed The return value of the callback
docstring_tokens: Execute the configured callback