php-工厂模式(转)

 1 <?php
 2 abstract class Parents
 3 {
 4 public function show(){}
 5 }
 6 
 7 class Sons extends Parents
 8 {
 9 public function show()
10 {
11 echo ‘i am son!‘;
12 }
13 }
14 
15 class Girls extends Parents
16 {
17 public function show()
18 {
19 echo ‘i am girl!‘;
20 }
21 }
22 
23 class Factory
24 {
25 private $arrParent = array();
26 public function create($parent)
27 {
28 $this->arrParent[] = new $parent();
29 }
30 public function show()
31 {
32 foreach($this->arrParent as $par)
33 {
34 $par->show();
35 }
36 }
37 }
38 
39 $factory = new Factory();
40 $factory->create(‘Sons‘);
41 $factory->create(‘Girls‘);
42 $factory->show();
43 ?>