如何檢查PHP對象是否是MongoDate對象？

Question

是否有像MongoId :: isValid（$ id）這樣的函數？你如何確定一個對象是否是MongoDate對象？檢查$ mongoDateObject-> sec isset（）？

Answer 1

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

Answer 2

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