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

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