# 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`.

### 参见

- getprotobyname() - Get protocol number associated with protocol name