gistfile1.php

class foo {

  // Lots more stuff here...
  

  private function processPersonContacts($person, $callback_function) {
		if (is_array($person->contacts)) {
			foreach($person->contacts as $contact) {
				$this->processContactEmailRecords($person, $contact, $callback_function);
			}
		} else {
			$this->processContactEmailRecords($person, $person->contacts, $callback_function);
		}
		
	}
	
	private function processContactEmailRecords ($person, $contact, $callback_function) {
		if (is_array($contact->email)) {
			foreach($contact->email as $emailRecord) {
				$this->processEmailRecord($person, $contact, $emailRecord, $callback_function);
			}
		} else {
			$this->processEmailRecord($person, $contact, $contact->email, $callback_function);
		}
		
	}

	private function processEmailRecord($person, $contact, $emailRecord, $callback_function) {
		call_user_func($callback_function, $person, $contact, $emailRecord);		
	}
	
	public function emailCallback($person, $contact, $emailRecord) {
		$this->people[$person->id] = $emailRecord->emailAddress;
	}
	
	// 	Retrieves a list of emails keyed by id 
	public function getPeople() {
		
		$parties = $this->capsule->party->getList();
		$this->people = array();
		
		
		foreach ($parties->parties->person as $person) {
			// 	debug(print_r($person, TRUE));
			// Create a little summary of this person
			$this->processPersonContacts($person, $this->emailCallback);
// 			$firstname    = property_exists($person, 'firstName') ? $person->firstName : "";
// 			$lastname     = property_exists($person, 'lastName')  ? $person->lastName : "";
// 			$organisation = property_exists($person, 'organisationName') ? $person->organisationName : "";			  
// 			$this->debug("Person ($id): $firstname $lastname ($organisation)\n");


		}

		return $people;

	}
}