Php/docs/function.socket-cmsg-space

• PHP Manual
• Socket 函数
• Calculate message buffer size

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

返回值

参见

• socket_recvmsg() - Read a message
• socket_sendmsg() - Send a message