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 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.
