PHP设计模式之建造者模式定义与用法简单示例

/**
* 产品类Person
*/
class Person
{
  public $_head;
  public $_body;
  public function setHead($head){
    $this->_head=$head;
  }
  public function getHead(){
    echo $this->_head;
  }
  public function setBody($body){
    $this->_body=$body;
  }
  public function getBody(){
    echo $this->_body;
  }
}
/*
抽象建造者：
定义的一个抽象接口，用于对具体建造者类进行规范
*/
interface Builder{
  public function buildHead();
  public function buildBody();
  public function getResult();
}
/*
具体建造者：
用于实现具体建造者类
*/
class ConcreteBuilder implements Builder{
  public $person;
  public $data;
  public function __construct($data){
    $this->person=new Person();
    $this->data=$data;
  }
  public function buildHead(){
    $this->person->setHead($this->data['head']);
  }
  public function buildBody(){
    $this->person->setBody($this->data['body']);
  }
  public function getResult(){
    return $this->person;
  }
}
/*
导演者类：
用于调用具体建造者类创建产品类实例
*/
class Director{
  public function __construct(ConcreteBuilder $builder){
    $builder->buildHead();
    $builder->buildBody();
  }
}
/*
客户端：
根据需求进行逻辑处理
*/
$data=array(
  'head'=>'大头儿子',
  'body'=>'身体棒棒哒'
  );
$builder=new ConcreteBuilder($data);
$director=new Director($builder);
$person=$builder->getResult();
echo $person->_head;
echo $person->_body;