(PHP 5 >= 5.1.0, PHP 7, PHP 8)
ReflectionFunctionAbstract::getDocComment — 获取注释内容
此函数没有参数。
如果存在文档注释返回其内容，否则返回 false。
Beware when you try to use the getDocComment() methods with eAccelerator turned on. eAccelerator »optimizes« your code in a way that it removes any comments from your source. So at runtime you're not able to get any comments and therefor getDocComments return false.In order to retrieve a comment with this method, the comment must be imediately before the class, function or method, start with /** and end with */