socket_cmsg_space

(PHP 5 >= 5.5.0, PHP 7)

socket_cmsg_space — Calculate message buffer size

int socket_cmsg_space ( int $level , int $type [, int $n = 0 ] )

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。