# getservbyport

(PHP 4, PHP 5, PHP 7)

getservbyport — Get Internet service which corresponds to port and protocol

### 说明

getservbyport ( int `$port` , string `$protocol` ) : string

getservbyport() returns the Internet service associated with `port` for the specified `protocol` as per /etc/services.

### 参数

`port`

  The port number.

`protocol`

  `protocol` is either "tcp" or "udp" (in lowercase).

### 返回值

Returns the Internet service name as a string.

### 参见

- getservbyname() - 获取互联网服务协议对应的端口