Php/docs/function.getprotobyname

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• Get protocol number associated with protocol name

getprotobyname

(PHP 4, PHP 5, PHP 7)

getprotobyname — Get protocol number associated with protocol name

说明

getprotobyname ( string $name ) : int|false

getprotobyname() returns the protocol number associated with the protocol name as per /etc/protocols.

参数

name

The protocol name.

返回值

Returns the protocol number, 或者在失败时返回 false.

范例

Example #1 getprotobyname() example

<?php$protocol = 'tcp';$get_prot = getprotobyname($protocol);if ($get_prot === FALSE) {    echo 'Invalid Protocol';} else {    echo 'Protocol #' . $get_prot;}?>

参见

• getprotobynumber() - Get protocol name associated with protocol number