getservbyport
(PHP 4, PHP 5, PHP 7, PHP 8)
getservbyport — Get Internet service which corresponds to port and protocol
說明
getservbyport(int
$port
, string $protocol
): string|false
getservbyport() returns the Internet service
associated with port
for the specified
protocol
as per /etc/services.
參數
-
port
-
The port number.
-
protocol
-
protocol
is either"tcp"
or"udp"
(in lowercase).
返回值
Returns the Internet service name as a string, 或者在失敗時返回 false
.