PHP父类调用子类方法的代码例子_php实例
今天突然发现需要在父类中调用子类的方法,之前一直都没这么用过,通过实践发现也可以。例子如:
/**
* 父类调用子类方法 基类
* @author LNMP100
*
*/
class BaseApp
{
/**
* 调用子类方法
* @version 创建时间:2013-07-10
*/
function _run_action()
{
$action = "index";
$this->$action();
}
}
class DefaultApp extends BaseApp
{
/**
* 此方法将在父类中调用
*/
function index()
{
echo "DefaultApp->index() invoked";
}
function Go(){
//调用父类
parent::_run_action();
}
}
$default=new DefaultApp();
$default->Go();
//将显示DefaultApp->index() invoked
?>
不过感觉上这不叫父类调子类,是子类调自己的方法而已,因为实例化是子类,如果你实例化父类还能调子类的方法就有问题了。

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