Socket Functions
PHP Manual

socket_cmsg_space

Calculate message buffer size

Description

intnull socket_cmsg_space(int $level, int $type, int $num = 0)

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

level

type

Return Values

See Also

  • socket_recvmsg
  • socket_sendmsg