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

MongoDB\BSON\Document::has

(mongodb >=1.16.0)

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

説明

final public function MongoDB\BSON\Document::has(string $key): bool

パラメータ

key (string): The key to look for in the document.

戻り値

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

エラー / 例外

Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.

参考

MongoDB\BSON\Document::get() - Returns the value of a key in the document
» BSON Types

関連キーワード:

MongoDB Document document present whether getIterator offsetExists mongodb final look otherwise Throws Driver Exception InvalidArgumentException argument parsing errors 参考 Types

関連する関数・ページ:

mongodb-bson-document.offsetexists mongodb-bson-document.get mongodb-bson-document.offsetget mongodb-bson-document.getiterator mongodb-bson-document.fromphp mongodb-bson-document.frombson