PHP设计模式——适配器模式
<?php /** * 适配器模式 * 适配器模式是将某个对象的接口适配为另一个对象所期望的接口 * * 在需要转化一个对象的接口用于另一个对象时,最好实现适配器模式对象 */ class Weather { public $_info = NULL; public function __construct() { $this->_info = serialize(array('tep' => 24, 'wind' => 2)); } public function show() { return unserialize($this->_info); } } //调用原始接口 序列化形式 $we = new Weather(); $array = $we->show(); echo '旧接口<br>'; echo "温度:" . $array['tep'] . "<br>"; echo "风力:" . $array['wind'] . "<br><br>"; class JsonAdapter extends Weather { public function __construct() { parent::__construct(); $tmp = unserialize($this->_info); $this->_info = json_encode($tmp); } public function show() { return json_decode($this->_info,TRUE); } } //调用原始接口 序列化形式 $we = new JsonAdapter(); $array = $we->show(); echo '新接口<br>'; echo "温度:" . $array['tep'] . "<br>"; echo "风力:" . $array['wind'] . "<br>";