**一.ReflectionParameter::getClass弃用** 1.代码实例 ~~~ function foo(Exception $e) { } $functionReflection = new ReflectionFunction('foo'); $parameters = $functionReflection->getParameters(); $eParameter = $parameters[0]; echo $eParameter->getClass()->name; ~~~ 1.低版本(5.6) ~~~ Exception ~~~ 2.新版本(8.0) ~~~ Deprecated: Method ReflectionParameter::getClass() is deprecated ~~~