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    QuickHashStringIntHash::exists

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    QuickHashStringIntHash::exists — This method checks whether a key is part of the hash

    说明

    public QuickHashStringIntHash::exists(string $key): bool

    This method checks whether an entry with the provided key exists in the hash.

    参数

    key

    The key of the entry to check for whether it exists in the hash.

    返回值

    Returns true when the entry was found, or false when the entry is not found.

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