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<MongoDB\BSON\Document::hasMongoDB\BSON\Document::offsetGet>
^MongoDB\BSON\DocumentLast updated: Mon, 26 Oct 2026

MongoDB\BSON\Document::offsetExists

(mongodb >=1.17.0)

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

Description

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

Parameters

key

The key to look for in the document.

Return Values

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

See Also


<MongoDB\BSON\Document::hasMongoDB\BSON\Document::offsetGet>
^MongoDB\BSON\DocumentLast updated: Mon, 26 Oct 2026