CascadiaPHP 2024

MongoDB\BSON\Iterator::key

(mongodb >=1.16.0)

MongoDB\BSON\Iterator::keyReturns the key of the current element

説明

public MongoDB\BSON\Iterator::key(): string|int

パラメータ

この関数にはパラメータはありません。

戻り値

Returns the key of the current element. When iterating a BSON document, the key will always be a string. When iterating a BSON array, the key will be an int.

エラー / 例外

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