本文实例讲述了php基于工厂模式实现的计算器。分享给大家供大家参考。具体如下：
abstract class calculator{ private $number1; private $number2; public $result; /** * @return the $number2 */ public function getnumber2() { return $this->number2; } /** * @param field_type $number2 */ public function setnumber2($number2) { $this->number2 = $number2; } /** * @return the $number1 */ public function getnumber1() { return $this->number1; } /** * @param field_type $number1 */ public function setnumber1($number1) { $this->number1 = $number1; } abstract function get_result(); }class add extends calculator{ public function get_result($number1,$number2) { return $number1+$number2; }}class sub extends calculator{ public function get_result($number1,$number2) { return $number1-$number2; }}class mul extends calculator{ public function get_result($number1,$number2) { return $number1*$number2; }}class div extends calculator{ public function get_result($number1,$number2) { return $number1/$number2; }}class factory{ public function building($notes) { if($notes==+) { $add=new add(); return $add; } elseif ($notes==-) { $sub=new sub(); return $sub; } elseif($notes==*) { $mul=new mul(); return $mul; } else { $div=new div(); return $div; } }}
希望本文所述对大家的php程序设计有所帮助。