filectime
(PHP 3, PHP 4 )
filectime -- Gets inode change time of file
Description
int filectime ( string filename)
Returns the time the file was last changed, or FALSE in
case of an error. The time is returned as a Unix timestamp.
Note: In most Unix filesystems, a file is considered changed
when its inode data is changed; that is, when the permissions,
owner, group, or other metadata from the inode is updated.
See also filemtime() (which is what you want to use when
you want to create "Last Modified" footers on
web pages) and fileatime().
Note also that in some Unix texts the ctime of a file is
referred to as being the creation time of the file. This
is wrong. There is no creation time for Unix files in most
Unix filesystems.
Note: The results of this function are cached. See clearstatcache()
for more details.
Tip: As of PHP 5.0.0 this function can also be used with
some URL wrappers. Refer to Appendix J for a listing of
which wrappers support stat() family of functionality.
Example 1. fileatime() example
<?php
// outputs e.g. somefile.txt was last changed: December
29 2002 22:16:23.
$filename = 'somefile.txt';
if (file_exists($filename)) {
echo "$filename was last changed: " . date("F
d Y H:i:s.", filectime($filename));
}
?>
See also filemtime()
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