Php/docs/function.socket-cmsg-space
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socket_cmsg_space
(PHP 5 >= 5.5.0, PHP 7)
socket_cmsg_space — Calculate message buffer size
说明
socket_cmsg_space
( int $level
, int $type
[, int $n
= 0
] ) : int
Calculates the size of the buffer that should be allocated for receiving the ancillary data.
Warning 本函数还未编写文档,仅有参数列表。
参数
level
type