PHP Tutorial - PHP filemtime() Function

Definition

PHP function filemtime() returns last modified time.

Syntax

PHP filemtime() Function has the following syntax.

filemtime(filename)

Parameter

Parameter	Is Required	Description
filename	Required.	File to check

Return

It returns a Unix timestamp for the time, which you then need to convert using a call to date().

This function returns the last change time as a Unix timestamp on success, FALSE on failure.

Note

The result of this function are cached. Use clearstatcache() to clear the cache.

Example

The filemtime() function returns the last time the file content was modified.


<?PHP//from ww  w.j a v a  2  s .  c o  m
     $contacts = "test.txt";
     $atime = fileatime($contacts);
     $mtime = filemtime($contacts);

     $atime_str = date("F jS Y H:i:s", $atime);
     $mtime_str = date("F jS Y H:i:s", $mtime);

     print "File last accessed: $atime_str\n";
     print "File last modified: $mtime_str\n";


     echo filemtime("test.txt");
     echo "\n";
     echo "Last modified: ".date("F d Y H:i:s.",filemtime("test.txt"));
?>

The code above generates the following result.