====== Sorting Images based on Exif data ======

Suppose you have a folder containing images taken by a digital camera over a period of time, wouldn't it be nice to sort these images into folders?

The script below **copies** folders from one folder to another, creating subfolders in the target folder with the name of YYYY-MM (2010-07).

**Usage:**

Save the script in your home folder e.g. imagecopy.php, and adjust the source and target folder names in the script. Then, execute the script

<code bash>
php -f ~/imagecopy.php
</code>

The script won't overwrite existing files in $target. But still, be careful with your images. Better try with backups first. 

<code php>
<?php

$filetypes = array('jpg','jpeg');
$source = './images_unsorted';
$target = './images_sorted';

$iterator = new RecursiveDirectoryIterator($source);

$bytestotal = 0;
$nbfiles = 0;

foreach (new RecursiveIteratorIterator($iterator) as $filename=>$fileobj) {

  $basename = $fileobj->getBasename();
  $extension = strtolower(substr($basename, strrpos($basename, '.')+1));

  if (in_array($extension, $filetypes)) {

    // read creation date from exif information, otherwise mtime

    echo $filename."\n";
    $exif = exif_read_data($filename, 'IFDO', 0);
    if ($exif!==false && isset($exif['DateTime'])) {
      $edate = $exif['DateTime'];
      $ts = strtotime($edate);
    } else {
      $ts = filemtime($filename);
    }

    // target folder
    $datestr = date('Y', $ts).'-'.date('m', $ts);

    $targetfolder = $target.'/'.$datestr;
    if (!file_exists($targetfolder)) {
      mkdir($targetfolder);
    }

    // copy file
    $targetfile = $targetfolder.'/'.$basename;
    if (!file_exists($targetfile)) {
      copy($filename, $targetfile);
    } else {
      echo "$targetfile exists!\n";
    }

  }

}

$bytestotal=number_format($bytestotal);
echo "Total: $nbfiles files, $bytestotal bytes\n";

?>
</code>