所以,这是我的特点:
trait Cacheable { protected static $isCacheEnabled = false; protected static $cacheExpirationTime = null; public static function isCacheEnabled() { return static::$isCacheEnabled && Cache::isEnabled(); } public static function getCacheExpirationTime() { return static::$cacheExpirationTime; } }
这是基类:
abstract class BaseClass extends SomeOtherBaseClass { use Cacheable; ... }
这是我的2个最后课程:
class Class1 extends BaseClass { ... } class Class2 extends BaseClass { protected static $isCacheEnabled = true; protected static $cacheExpirationTime = 3600; ... }
以下是执行这些类的代码部分:
function baseClassRunner($baseClassName) { ... $output = null; if ($baseClassName::isCacheEnabled()) { $output = Cache::getInstance()->get('the_key'); } if ($output === null) { $baseClass = new $baseClassName(); $output = $baseClass->getOutput(); if ($baseClassName::isCacheEnabled()) { Cache::getInstance()->set('the_key',$output); } } ... }
此代码不起作用,因为PHP抱怨在Class2中定义与Cacheable中相同的属性.我无法在它们的构造函数中设置它们,因为我想在运行构造函数之前读取它们.我是开放的想法,任何帮助将不胜感激.