filegroup
keep in mind that this function is prone to an overflow, and on big filesystems it will return negative values.
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 on failure.
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.';
}
?>
오류/예외
Upon failure, an E_WARNING is emitted.
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 Supported Protocols and Wrappers를 참고하십시오.
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User Contributed Notes
fileinode - [3 notes]
meltir at meltir dot com dot nothing ¶
5 years ago
mark nearby techexplained dot com ¶
8 years ago
This function, in spite of its name, also works for directories. Most any valid path in the filesystem will generate an inode value.
pixel20 at wp dot pl ¶
5 years ago
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\");