Posted By

fackz on 02/12/09

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Last Edited at 02/12/09 09:06am

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Sort files from directory & order them by filemtime()

/ Published in: PHP

This is a function that selects files from a directory and orders them by the last time they were changed, in ascending or descending order. The snippet also calculates how much time passed since the fileâ€™s content was changed.

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function Sort_Directory_Files_By_Last_Modified($dir, $sort_type = 'descending', $date_format = "F d Y H:i:s.")
{
$files = scandir($dir);

$array = array();

foreach($files as $file)
{
	if($file != '.' && $file != '..')
	{
		$now = time();
		$last_modified = filemtime($dir.$file);

$time_passed_array = array();

$diff = $now - $last_modified;

$days = floor($diff / (3600 * 24));

if($days)
		{
		$time_passed_array['days'] = $days;
		}

$diff = $diff - ($days * 3600 * 24);

$hours = floor($diff / 3600);

if($hours)
		{
		$time_passed_array['hours'] = $hours;
		}

$diff = $diff - (3600 * $hours);

$minutes = floor($diff / 60);

if($minutes)
		{
		$time_passed_array['minutes'] = $minutes;
		}

$seconds = $diff - ($minutes * 60);

$time_passed_array['seconds'] = $seconds;

$array[] = array('file'         => $file,
		             'timestamp'    => $last_modified,
		             'date'         => date ($date_format, $last_modified),
		             'time_passed'  => $time_passed_array);
	}
}

usort($array, create_function('$a, $b', 'return strcmp($a["timestamp"], $b["timestamp"]);'));

if($sort_type == 'descending')
{
krsort($array);
}

return array($array, $sort_type);
}

//Example of usage:

$dir  = '/home/public_html/my_directory/';

$array = Sort_Directory_Files_By_Last_Modified($dir);

// Info Array
$info = $array[0];

// Sort Type
$sort_type = $array[1];

echo '<h3>'.$dir.'</h3>';

echo 'Order by: Last Modified ('.$sort_type.')<br>';

foreach($info as $key => $detail)
{
	echo '<h4>'.$detail['file'].'</h4>';

echo 'Last Modified: '.$detail['date'].'<br>';

$time_passed = '';

foreach($detail['time_passed'] as $type => $value)
	{
	$time_passed .= $value." ".$type.", ";
	}

$time_passed = "<span>".rtrim($time_passed, ", ")."</span> ago";

echo $time_passed."nn";

}

URL: http://www.bitrepository.com/web-programming/php/sort-files-by-filemtime.html

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