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    socket_cmsg_space

    (PHP 5 >= 5.5.0, PHP 7, PHP 8)

    socket_cmsg_space — Calculate message buffer size

    说明

    socket_cmsg_space(int $level, int $type, int $num = 0): ?int

    Calculates the size of the buffer that should be allocated for receiving the ancillary data.

    警告

    本函数还未编写文档，仅有参数列表。

    参数

    level

    type

    返回值

    参见

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