[RESOLVED] Site Last Modified Date

[tone72]

Hi. I have the following PHP code which works fine for a single page to give the last modified date of the page that the code appears on. However, I want to include some type of modified code in footer.php that will give the date of modification to any page in the root directory. Can I use filemtime() to do this on a directory? I've tried to research whether I can do this, but I'm not finding the answer anywhere. Thanks!

<?php
$filename = 'somefile.php';
if (file_exists($filename)) {
    echo "Last modified: " . date ("F d Y H:i:s", filemtime($filename));
}
?>

[tone72]

I am making some progress, but the displayed date is the UNIX time January 01 1970 10:00:00. This is the code I am attempting to use.

<?php

// Only take into account those files whose extensions you want to show.
$allowedExtensions = array(
  'php',
  'css',
);

//define the path
$path = "/path/to/directory/";

function filemtime_r($path)
{
    global $allowedExtensions;

if (!file_exists($path))
    return 0;

$extension = end(explode(".", $path));    
if (is_file($path) && in_array($extension, $allowedExtensions))
    return filemtime($path);
$ret = 0;

 foreach (glob($path."/*") as $fn)
 {
    if (filemtime_r($fn) > $ret)
        $ret = filemtime_r($fn);   
 }
return $ret;   
}
?>

//code in footer.php
<?php echo "Site Last Updated: " . date ("F d Y H:i:s", filemtime_r($path)); ?>

[tone72]

I'm also trying a simple method with code below but it's not updating when a file is changed only when a new file is added to the directory.

<?php echo "Site Last Updated: " . date ("F d Y H:i:s", filemtime($_SERVER['DOCUMENT_ROOT']."/.")); ?>

[tone72]

I ended up using the following code to get it working. 🙂

<?php
function getAllFiles($directory, $recursive = true) {
     $result = array();
     $handle =  opendir($directory);
     while ($datei = readdir($handle))
     {
          if (($datei != '.') && ($datei != '..'))
          {
               $file = $directory.$datei;
               if (is_dir($file)) {
                    if ($recursive) {
                         $result = array_merge($result, getAllFiles($file.'/'));
                    }
               } else {
                    $result[] = $file;
               }
          }
     }
     closedir($handle);
     return $result;
}

function getHighestFileTimestamp($directory, $recursive = true) {
     $allFiles = getAllFiles($directory, $recursive);
     $highestKnown = 0;
     foreach ($allFiles as $val) {
          $currentValue = filemtime($val);
          if ($currentValue > $highestKnown) $highestKnown = $currentValue;
     }
     return $highestKnown;
}
?>

And to echo result:

<?php echo "Site Last Updated: " . date("F d Y H:i:s", getHighestFileTimestamp('../')); ?>