php man page for filectime

FILECTIME(3)								 1							      FILECTIME(3)

filectime - Gets inode change time of file

SYNOPSIS
       int filectime (string  $filename)

DESCRIPTION
	Gets the inode change time of a file.

PARAMETERS
	      o $filename
		- Path to the file.

RETURN VALUES
	Returns the time the file was last changed, or FALSE on failure. The time is returned as a Unix timestamp.

EXAMPLES
       Example #1

	      A filectime(3) 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));
	      }

	      ?>

ERRORS
/EXCEPTIONS
	Upon failure, an E_WARNING is emitted.

NOTES
       Note

	       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(3) (which is what you want to use when  you  want	to  create
	      "Last Modified" footers on web pages) and fileatime(3).

       Note

	       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

	      Note that time resolution may differ from one file system to another.

       Note

	      The results of this function are cached. See clearstatcache(3) for more details.

       Tip

	      As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to "Supported Protocols  and  Wrappers"  to  determine
	      which wrappers support stat(3) family of functionality.

SEE ALSO
       filemtime(3).

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