MongoDB\BSON\PackedArray::offsetExists

(mongodb >=1.17.0)

MongoDB\BSON\PackedArray::offsetExists — Returns whether a index is present in the array

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

Returns true if the index is present in the array and false otherwise.

ArrayAccess::offsetExists() - 检查一个偏移位置是否存在
MongoDB\BSON\PackedArray::has() - Returns whether a index is present in the array

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