Php scandir sort by date

I'm trying to make scandir[]; function go beyond its written limits, I need more than the alpha sorting it currently supports. I need to sort the scandir[]; results to be sorted by modification date.

I've tried a few solutions I found here and some other solutions from different websites, but none worked for me, so I think it's reasonable for me to post here.

What I've tried so far is this:

function scan_dir[$dir]
{
    $files_array = scandir[$dir];
    $img_array   = array[];
    $img_dsort   = array[];
    $final_array = array[];

    foreach[$files_array as $file]
    {
        if[[$file != "."] && [$file != ".."] && [$file != ".svn"] && [$file != ".htaccess"]]
        {
            $img_array[] = $file;
            $img_dsort[] = filemtime[$dir . '/' . $file];   
        }
    }

    $merge_arrays = array_combine[$img_dsort, $img_array];
    krsort[$merge_arrays];

    foreach[$merge_arrays as $key => $value]
    {
        $final_array[] = $value;    
    }

    return [is_array[$final_array]] ? $final_array : false;
}

But, this doesn't seem to work for me, it returns 3 results only, but it should return 16 results, because there are 16 images in the folder.

halfer

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asked Aug 12, 2012 at 15:10

function scan_dir[$dir] {
    $ignored = array['.', '..', '.svn', '.htaccess'];

    $files = array[];    
    foreach [scandir[$dir] as $file] {
        if [in_array[$file, $ignored]] continue;
        $files[$file] = filemtime[$dir . '/' . $file];
    }

    arsort[$files];
    $files = array_keys[$files];

    return [$files] ? $files : false;
}

answered Aug 12, 2012 at 15:50

Ryon ShermanRyon Sherman

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3

This is a great question and Ryon Sherman’s answer provides a solid answer, but I needed a bit more flexibility for my needs so I created this newer function: better_scandir.

The goal is to allow having scandir sorting order flags work as expected; not just the reverse array sort method in Ryon’s answer. And also explicitly setting SORT_NUMERIC for the array sort since those time values are clearly numbers.

Usage is like this; just switch out SCANDIR_SORT_DESCENDING to SCANDIR_SORT_ASCENDING or even leave it empty for default:

better_scandir[, SCANDIR_SORT_DESCENDING];

And here is the function itself:

function better_scandir[$dir, $sorting_order = SCANDIR_SORT_ASCENDING] {

  /****************************************************************************/
  // Roll through the scandir values.
  $files = array[];
  foreach [scandir[$dir, $sorting_order] as $file] {
    if [$file[0] === '.'] {
      continue;
    }
    $files[$file] = filemtime[$dir . '/' . $file];
  } // foreach

  /****************************************************************************/
  // Sort the files array.
  if [$sorting_order == SCANDIR_SORT_ASCENDING] {
    asort[$files, SORT_NUMERIC];
  }
  else {
    arsort[$files, SORT_NUMERIC];
  }

  /****************************************************************************/
  // Set the final return value.
  $ret = array_keys[$files];

  /****************************************************************************/
  // Return the final value.
  return [$ret] ? $ret : false;

} // better_scandir

answered May 23, 2019 at 17:46

Giacomo1968Giacomo1968

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Alternative example..

$dir = "/home/novayear/public_html/backups";
chdir[$dir];
array_multisort[array_map['filemtime', [$files = glob["*.{sql,php,7z}", GLOB_BRACE]]], SORT_DESC, $files];
foreach[$files as $filename]
{
  echo "".substr[$filename, 0, -4]."
"; 
}  

answered Dec 20, 2013 at 15:49

NovaYearNovaYear

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Another scandir keep latest 5 files:

public function checkmaxfiles[]
{

    $dir = APPLICATION_PATH . '\\modules\\yourmodulename\\public\\backup\\';
    // '../notes/';
    $ignored = array['.', '..', '.svn', '.htaccess'];
    $files = array[];
    foreach [scandir[$dir] as $file] {
        if [in_array[$file, $ignored]] continue;
        $files[$file] = filemtime[$dir . '/' . $file];
    }
    arsort[$files];
    $files = array_keys[$files];
    $length = count[$files];
    if[$length < 4 ]{
        return;
    }
    for [$i = $length; $i > 4; $i--] {
           echo "Erase : " .$dir.$files[$i];
           unlink[$dir.$files[$i]];
    }

}

Toni

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answered May 20, 2021 at 1:03