update : 2015.11.03
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Get protocol number associated with protocol name
Network 함수 목록
PHP Manual

getprotobyname

(PHP 4, PHP 5)

getprotobyname — Get protocol number associated with protocol name

설명

int getprotobyname ( string $name )

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

인수

name

The protocol name.

반환값

Returns the protocol number, 실패 시 FALSE를 반환합니다.

예제

Example #1 getprotobyname() example

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

참고

Network 함수 목록
PHP Manual