PHP: socket_cmsg_space - Manual
(PHP 5 >= 5.5.0, PHP 7, PHP 8)
socket_cmsg_space — Calculate message buffer size
Description
function 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.
Warning
This function is currently not documented; only its argument list is available.
Parameters
leveltype
Return Values
See Also
- socket_recvmsg() - Read a message
- socket_sendmsg() - Send a message
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