$visitor->visitCroncreteElementB($this);
}
}
class ObjectStructure
{
private $_elements = array();
public function attach($element)
{
$this->_elements[] = $element;
}
public function detach($element)
{
if ($key = array_search($element, $this->_elements) !== false) {
unset($this->_elements[$key]);
}
}
public function accept($visitor)
{
foreach ($this->_elements as $element) {
$element->accept($visitor);
}
}
}
//
$objOS = new ObjectStructure();
$objOS->attach(new ConcreteElementA());
$objOS->attach(new ConcreteElementB());
$objCV1 = new ConcreteVisitor1();
$objCV2 = new ConcreteVisitor2();
$objOS->accept($objCV1);
$objOS->accept($objCV2);
$visitor->visitConcreteElementB($this);
}
}
//ObjectStructure类,能枚举它的元素,可以提供一高层的接口允许访问者访问它的元素
class ObjectStructure
{
private $_elements = array();
public function attach($element)
{
$this->_elements[] = $element;
}
public function detach($element)
{
if ($key = array_search($element, $this->_elements) !== false) {
unset($this->_elements[$key]);
}
}
public function accept($visitor)
{
foreach ($this->_elements as $element) {
$element->accept($visitor);
}
}
}
$objOs = new ObjectStructure();
$objOs->attach(new ConcreteElementA());
$objOs->attach(new ConcreteElementB());
$objCV1 = new ConcreteVisitor1();
$objCV2 = new ConcreteVisitor2();
$objOs->accept($objCV1);
$objOs->accept($objCV2);
}
//对象结构
class ObjectStructure
{
public $elementList = array();
public function addElement(Element $element)
{
$this->elementList[spl_object_hash($element)] = $element;
}
public function delElement(Element $element)
{
unset($this->elementList[spl_object_hash($element)]);
}
public function accept(Visitor $visitor)
{
foreach ($this->elementList as $element) {
$element->accept($visitor);
}
}
}
//客户端代码
$objectStructure = new ObjectStructure();
//对象结构
$objectStructure->addElement(new ConcreteElementA('男人'));
$objectStructure->addElement(new ConcreteElementA('女人'));
$va = new ConcreteVisitorA('成功');
$vb = new ConcreteVisitorB('失败');
$vc = new ConcreteVisitorC('恋爱');
$objectStructure->accept($va);
$objectStructure->accept($vb);
$objectStructure->accept($vc);
{
return array_push($this->_collection, $element);
}
public function detach(Element $element)
{
$index = array_search($element, $this->_collection);
if ($index !== FALSE) {
unset($this->_collection[$index]);
}
return $index;
}
public function accept(Visitor $visitor)
{
foreach ($this->_collection as $element) {
$element->accept($visitor);
}
}
}
// client
$elementA = new ConcreteElementA("ElementA");
$elementB = new ConcreteElementB("ElementB");
$elementA2 = new ConcreteElementB("ElementA2");
$visitor1 = new ConcreteVisitor1();
$visitor2 = new ConcreteVisitor2();
$os = new ObjectStructure();
$os->attach($elementA);
$os->attach($elementB);
$os->attach($elementA2);
$os->detach($elementA);
$os->accept($visitor1);
$os->accept($visitor2);
}
public function delPerson(Person $person)
{
unset($this->personList[spl_object_hash($person)]);
}
public function accept(Action $action)
{
foreach ($this->personList as $person) {
$person->accept($action);
}
}
}
//客户端代码
$ObjectStructure = new ObjectStructure();
$ObjectStructure->addPerson(new Man('男人'));
$ObjectStructure->addPerson(new Woman('女人'));
$success = new Success('成功');
$failing = new Failing('失败');
$amativeness = new amativeness('恋爱');
$ObjectStructure->accept($success);
$ObjectStructure->accept($failing);
$ObjectStructure->accept($amativeness);
/*
输出如下
男人成功时，背后多有一个伟大的女人
女人成功时，背后多一个不成功的男人
男人失败时，闷头喝酒谁也劝不了
女人失败时，眼泪旺旺谁也不用劝
男人恋爱时，遇事不懂也要装懂
女人恋爱时，遇事懂也装作不懂
*/
