How to use php filectime function

php filectime function returns the last inode modification time of the specified file. Its syntax is fileatime(filename). The parameter filename is required and refers to the file to be checked.

#How to use php filectime function?

Definition and usage

The filectime() function returns the last inode modification time of the specified file.

This function returns the time when the last inode of the file was modified. Returns false if an error occurs. The time is returned as a Unix timestamp.

Syntax

fileatime(filename)

Parameters

filename required. Specifies the documents to be checked.

Tips and comments

Tips: The results of this function will be cached. Please use clearstatcache() to clear the cache.

Note: In most Unix file systems, a file is considered modified when its inode data is changed. That is, when the file's permissions, owner, all groups, or other metadata in the inode are updated. See filemtime() (this is the function you want to use to create a "last updated" footer in a web page) and fileatime().

Note: Some Unix instructions describe ctime as the time when the file was created, which is wrong. In most Unix file systems, there is no creation time for Unix files.

Example

<?php
echo filectime("test.txt");
echo "Last change: ".date("F d Y H:i:s.",filectime("test.txt"));
?>

Output:

1138609592
Last change: January 30 2006 09:26:32.

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