基于php设计模式中工厂模式详细介绍

//对象
class MyObject{
public function __construct(){}
public function test(){
return 'test';
}
}
//工厂
class MyFactory{
public static function factory(){
return new MyObject();
}
} $myObject = MyFactory::factory();
echo $myObject->test();
?>

?//抽象类 定义属性及抽象方法
abstract class Operation{
protected $_NumberA = 0;
protected $_NumberB = 0;
protected $_Result= 0; public function __construct($A,$B){
$this->_NumberA = $A;
$this->_NumberB = $B;
} public function setNumber($A,$B){
$this->_NumberA = $A;
$this->_NumberB = $B;
} public function clearResult(){
$this->_Result = 0;
} abstract protected function getResult();
} //操作类
class OperationAdd extends Operation{
public function getResult(){
$this->_Result = $this->_NumbserA + $this->_NumberB;
return $this->_Result;
}
} class OperationSub extends Operation{
public function getResult(){
$this->_Result = $this->_NumberA - $this->_NumberB;
return $this->_Result;
}
}
………… //工厂类
class OperationFactory{
private static $obj; public static function CreationOperation($type,$A,$B){
switch($type){
case '+':
self::$obj = new OperationAdd($A,$B);
break;
case '-':
self::$obj = new OperationSub($A,$B);
break;
……
}
}
} //操作
$obj = OperationFactory:: CreationOperation('+',5,6);
echo $obj-> getResult();
?>