<?php
/**
* PHP collection 类(一)
*/
error_reporting(0);
class Collection{
protected $_members = array();
public function addItem($obj,$key = null){
if(empty($key)) throw new Exception("The key is not given!");
if(isset($this->_members[$key])) throw new Exception("The key is exists");
$this->_members[$key] = $obj;
}
public function removeItem($key){
if(!isset($this->_members[$key])) throw new Exception("Invalid key");
unset($this->_members[$key]);
}
public function getItem($key){
if(!isset($this->_members[$key])) throw new Exception("Invalid key");
return $this->_members[$key];
}
public function getLength(){
return sizeof($this->_members);
}
public function keys(){
return array_keys($this->_members);
}
}
class person{
private $_name;
private $_number;
public function __construct($name,$number){
$this->_name = $name;
$this->_number = $number;
}
public function __toString(){
return $this->_name.' is '.$this->_number;
}
}
$testC = new superCollection();
$testC->spaddItem(new person('xiaojiang',25),'xiaojiang');
$testC->spaddItem(new person('xiaoxin',25),'xiaoxin');
//$testC->removeItem('xiaojiang');
//print_r($testC);
/*try{
// var_dump($testC);
//echo $testC->spgetItem('xiaojiang');
}catch(Exception $e){
echo $e->getmessage();
} */
class superCollection extends Collection{
private $_isLoaded = false;
private $_onLoad;
public function __call($method,$param){
if(substr($method,0,2) == 'sp' && is_callable( array(parent,substr($method,2)) ) ){
$this->_checkCallback();
return call_user_func_array(array(parent,substr($method,2)),$param);
}
}
public function _checkCallback(){
if(!$_isLoaded && isset($this->_onLoad)){
$this->isLoaded = true;
call_user_func($this->_onLoad,$this);
}
}
public function setCallback($funName,$Obj = null,$param){
if($Obj){
$callback = array($Obj,$funName);
}else{
$callback = $funName;
}
if(!is_callable($callback,false,$callbackName)){
throw new Exception("{$callbackName} can't be called");
return false;
}
$this->_onLoad = $callback;
}
}
class course_collection extends superCollection{}
class course{
private $_name;
private $_course_code;
private $_id;
function __construct($name,$code,$id){
$this->_name = $name;
$this->_course_code = $code;
$this->_id = $id;
}
public function getId(){
return $this->_id;
}
}
class student{
private $_name;
private $_age;
public function __construct($name,$age){
$this->_name = $name;
$this->_age = $age;
$this->_course = new course_collection();
$this->_course->setCallback('getCourse',$this);
}
public function getCourse($courseObj){
$date = array(
'xiaojiang'=> array(
array('id'=>1,'name'=>'math','code'=>99),
array('id'=>2,'name'=>'english','code'=>88)
),
'xiaoxin'=> array(
array('id'=>3,'name'=>'math','code'=>77),
array('id'=>4,'name'=>'english','code'=>66)
)
);
foreach($date[$this->_name] as $k => $v){
$course = new course($v['name'],$v['code'],$v['id']);
$courseObj->addItem($course,$course->getId());
}
}
public function getName(){
return $this->_name;
}
}
try{
$Stud = new student('xiaojiang',25);
//echo $Stud->getName();
print_r($Stud->_course->spgetItem(2));
}catch(Exception $e){
echo $e->getmessage();
}
?>转自 http://www.cnblogs.com/glory-jzx/archive/2012/08/01/2617613.html
