如何检查PHP对象是否是MongoDate对象？

Question

是否有像MongoId :: isValid（$ id）这样的函数？你如何确定一个对象是否是MongoDate对象？检查$ mongoDateObject-> sec isset（）？

Answer 1

1. if (is_a($mongoDateObject, 'MongoDate')) {...}
2. if (get_class($mongoDateObject) == 'MongoDate')) {...}

Answer 2

if ($mongoDateObject instanceof MongoDate) {...}