PHP: Hypertext Preprocessor (original) (raw)

fileinode

(PHP 4, PHP 5, PHP 7, PHP 8)

fileinode — Gets file inode

Description

Parameters

filename

Path to the file.

Return Values

Returns the inode number of the file, or [false](reserved.constants.php#constant.false) on failure.

Errors/Exceptions

Upon failure, an [E_WARNING](errorfunc.constants.php#constant.e-warning) is emitted.

Examples

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.'; } ?>

Notes

Note: The results of this function are cached. See clearstatcache() for more details.

See Also

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

Found A Problem?

crrodriguez at opensuse dot org ¶

9 months ago

On the linux kernel, COW filesystems like BTRFS, BcacheFS, etc Inode numbers are not usable to determine if something is the same file. This is intentional.