MongoDB\BSON\Document
PHP マニュアル

MongoDB\BSON\Document::has

Returns whether a key is present in the document

説明

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

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