fileinode

(PHP 4, PHP 5)

fileinode — Gets file inode

설명

int fileinode ( string $filename )

Gets the file inode.

인수

filename: Path to the file.

반환값

Returns the inode number of the file, or FALSE in case of an error.

예제

Example #1 Comparing the inode of a file with the current file


<?php
$filename = 'index.php';
if (getmyinode() == fileinode($filename)) {
    echo 'You are checking the current file.';
}
?>

주의

Note: 이 함수의 결과는 캐시에 저장합니다. 자세한 설명은 clearstatcache()를 참고하십시오.

Tip

PHP 5.0.0부터 이 함수는 몇몇 URL 래퍼를 사용할 수 있습니다. 기능적으로 stat() 패밀리를 지원하는 래퍼 목록은 지원 프로토콜/래퍼 목록를 참고하십시오.

참고

getmyinode() - Gets the inode of the current script
stat() - Gives information about a file

filemtime

filegroup

Last updated: Fri, 24 Jul 2009

add a note User Contributed Notes
fileinode

meltir at meltir dot com dot nothing
26-Nov-2007 09:02


keep in mind that this function is prone to an overflow, and on big filesystems it will return negative values.

pixel20 at wp dot pl
04-Oct-2007 07:48


Sample function that generates apache 2.2 ETag. Useful for scripts serving images or other cachable data.



$file="example.png";



// Inode

$ETag = dechex(fileinode($file));

// Size

$ETag.= "-".dechex(filesize($file));

// Modification time in useconds & (2^33-1)

$ETag.= "-".dechex(((filemtime($file).str_repeat("0",6)+0) & (8589934591)));



header("ETag: \"$ETag\");

mark nearby techexplained dot com
06-Jan-2005 05:37


This function, in spite of its name, also works for directories. Most any valid path in the filesystem will generate an inode value.

add a note

filemtime

filegroup

Last updated: Fri, 24 Jul 2009