getprotobynumber
(PHP 4, PHP 5, PHP 7)
getprotobynumber — Get protocol name associated with protocol number
说明
getprotobynumber
( int
$number
) : string
getprotobynumber() returns the protocol name
associated with protocol number as per
/etc/protocols.
参数
-
number -
The protocol number.
返回值
Returns the protocol name as a string, 或者在失败时返回 FALSE.