PHP Manual
MongoDB\BSON\Document
Returns whether a key is present in the document

MongoDB\BSON\Document::offsetExists

(mongodb >=1.17.0)

MongoDB\BSON\Document::offsetExists — Returns whether a key is present in the document

説明

final public function MongoDB\BSON\Document::offsetExists(mixed $key): bool

パラメータ

key: The key to look for in the document.

戻り値

Returns true if the key is present in the document and false otherwise.

参考

ArrayAccess::offsetExists() - オフセットが存在するかどうか
MongoDB\BSON\Document::has() - Returns whether a key is present in the document

関連キーワード:

MongoDB Document document present whether offsetExists offsetGet mongodb final mixed look otherwise 参考 ArrayAccess オフセット

関連する関数・ページ:

mongodb-bson-document.has mongodb-bson-document.get mongodb-bson-document.offsetget class.mongodb-bson-document mongodb-bson-document.fromphp mongodb-bson-document.construct