listing of directorys by data created

Hey there,

I have this code that returns the list of directorys inside a folder

$dir = 'path/';

if ($handle = opendir($dir)) {
  while (false !== ($dirs = readdir($handle))) {
    if ($dirs != "." && $dirs != ".." && is_dir($dir."/".$dirs)) {                  
      If ($ldirs) {
        array_push($ldirs, $dirs);  } else {      $ldirs = array($dirs);      }            
       }
    }
  closedir($handle);
}

And that works fine, I get a $ldirs array with the folder names in it. But what I would like is the array to be sorted with the newest folder at the top to the oldest folder at the bottom (by creation date)

Make sense?

Cheers
Nick

LVL 10
wildzeroAsked:
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zac_charlesConnect With a Mentor Commented:
Hi,
This is done like this...

<?php
$dir = 'path/';//Define path (eg. C:/)

if ($handle = opendir($dir))
{

  while(false !== ($dirs = readdir($handle)))
  {
    if($dirs != "." && $dirs != ".." && is_dir($dir."/".$dirs))
    {
      if($ldirs)
      {
        array_push($ldirs, $dirs);//put folder name at the end of $ldirs (if $ldirs does exists)
      }
      else
      {
        $ldirs = array($dirs);//create ldirs with folder name in it (if $ldirs doesn't already exist)
      }
    }
  }
  closedir($handle);

}

$count = count($ldirs); //Count the number of folders in ldirs(int=>folder)
$times = array(); //Array to be populated by loop below (int=>time created)

for($i=0;$i<$count;$i++)//populate $times untill there is no more folders left to do
{
  $time = (time() - filectime("$dir/$ldirs[$i]"))/60/60/24;//define $time as the folders create time
  $times[$i] = $time;//add the time to the $times array
}

$cdirs = array_combine($ldirs,$times); //Make a new array (folder=>time created)
print_r($cdirs); //unsorted (folder=>time created)

array_multisort($cdirs, SORT_NUMERIC, SORT_DESC); //Sort by time created
print '<br><br>';

print_r($cdirs); //sorted (folder=>time created)
?>


Zac Charles
0
 
zac_charlesCommented:
By the way, if you sit there and refresh that page, you can see your folders growing older lol

Zac Charles
0
 
zac_charlesCommented:
I just tried this script on my other server, and it will only work on PHP5 because array_combine() is only in version 5. Here is a version that will use a less-then-php5 friendly bit of code in you dont have php5 and the array_combine() function if you do:

<?php
$dir = 'path/';//Define path (eg. C:/)

if ($handle = opendir($dir))
{

  while(false !== ($dirs = readdir($handle)))
  {
    if($dirs != "." && $dirs != ".." && is_dir($dir."/".$dirs))
    {
      if($ldirs)
      {
        array_push($ldirs, $dirs);//put folder name at the end of $ldirs (if $ldirs does exists)
      }
      else
      {
        $ldirs = array($dirs);//create ldirs with folder name in it (if $ldirs doesn't already exist)
      }
    }
  }
  closedir($handle);

}

$count = count($ldirs); //Count the number of folders in ldirs(int=>folder)
$times = array(); //Array to be populated by loop below (int=>time created)

for($i=0;$i<$count;$i++)//populate $times untill there is no more folders left to do
{
  $time = (time() - filectime("$dir/$ldirs[$i]"))/60/60/24;//define $time as the folders create time
  $times[$i] = $time;//add the time to the $times array
}

$phpVer = phpversion();

if($phpVer[1] != '5')//if you dont have php5
{
    $cdirs = array();
    for($i=0;$i<$count;$i++)
    {
        $cdirs[$ldirs[$i]] = $times[$i];
    }
}
else //if you have php5
{
    $cdirs = array_combine($ldirs,$times); //Make a new array (folder=>time created)
}

print_r($cdirs); //unsorted (folder=>time created)

array_multisort($cdirs, SORT_NUMERIC, SORT_DESC); //Sort by time created
print '<br><br>';

print_r($cdirs); //sorted (folder=>time created)
?>

There you go :)

Zac Charles
0
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wildzeroAuthor Commented:
Ah thats awesome, I actually read and tested the first code and found that it was only PHP5 so I whiped up a little arreycombine code lol. But yea thats perfect, just 1 question.

How I can I get the first folder name in the array? :)
Like, $cdirs[0] (which don't work I know, just exmaple)

But yea, thats perfect!
0
 
zac_charlesCommented:
The second one which will work for either php4 or PHP5 will make an array($cdirs) with the layout like this:
["folder_name"] => 'created_time'

I think that is the answer to your question, if not, can you please explain it better.

Zac Charles
0
 
wildzeroAuthor Commented:
Yea thats cool
That last question, what I was after was
I get the array $cdirs

but I don't know what any of the folder_names are, and all I want is the first one at the top of the array... So how can I output the key of the first item at the top of the array?

Like array has
["folder"] => '10' and ["folder2"] => '12' and ["folder3"] => '14'

What I would like is to be-able to someway get that first folder name (first key in array) - ie folder
0
 
zac_charlesCommented:
foreach($cdirs as $dir=>$time)
{
  if(!$first)
  {
    $first = array("folder_name"=>$dir,"create_time"=>$time);
  }
}

print '['.$first["folder_name"].']';

Zac Charles
0
 
wildzeroAuthor Commented:
Excellent
0
 
zac_charlesCommented:
Your welcome
0
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