Development
 Server Side

Hi all,

Basically I have an album structure;

Gallery/Album1…Album2…/large

And also thumbnails;
Gallery/Album1…Album2…/thumbs

             
I am using a PHP script to auto generate an XML for the slideshows photo content, and am trying to add a section of script to show the EXIF caption data (or XMP IPTC if it’s easier?) from the respective pictures, for the caption in the XML/slideshow.

I think I’m way off, as I’m a complete novice, I am trying this (added to the full original script further below):

I get no errors, but no ‘geoffin’ data either and I’ve tried several EXIF fields with no joy, eventually I want to use captions, but I’m using these other fields to test it out as I was hoping to be more likely to find them.

[PHP] // read EXIF headers

        // Album tag
  $o .= “\t” . ‘<album title=”’ . $title . ’” description=”” lgPath=”’ . $loc_path .

$large_folder . ‘/”’ . $tn . $atn . ‘>’ . “\n”;
 
  // Cycle through images, adding tag for each to XML
  foreach($images as $i) {

  //EXIF description
 
  {
            $exif = exif_read_data($loc_path . $large_folder . ‘/’ . $i, 0, true);
      $caption = $exif[‘IFD0’][‘software’];
  }
 
  $link = ‘’;
  if (isset($_GET[‘link’])) { $link = $loc_path . $large_folder . ‘/’ . $i; }
  $o .= “\t\t” . ‘[img]’ . $i . ” caption=”’ . $caption . ’”  link=”’ .

$link . ’” [/img]’ . “\n”;
  }
 
  // Close the album tag
  $o .= “\t</album>\n”;
[/PHP]

AND the full script::

[PHP]

<?php

/**************************************************************************

XML Generator for SlideShowPro
Brad Daily - slideshowpro.net

For instructions, see the readme.txt file that accompanied this download.

This script is governed by the following license:
http://creativecommons.org/licenses/by-nc-sa/3.0/us/

**************************************************************************/

/*
  CONFIGURATION
*/

// Name of the folder in each album’s folder that contains the full size imagery
$large_folder = ‘lg’;

// Name of the folder in each album’s folder that contains the thumbnails
$thumb_folder = ‘tn’;

// Name of your album preview image. Should be placed at the root of each album’s folder.

(Optional)
$album_preview_name = ‘albumPreview.jpg’;

/*
  END CONFIGURATION
  (DO NOT EDIT BELOW THIS LINE UNLESS YOU KNOW WHAT YOU ARE DOING)
*/

// Set up paths
define(‘DS’, DIRECTORY_SEPARATOR);
$dir = dirname(__FILE__);
$server = ‘http://’ . $_SERVER[‘HTTP_HOST’];
$rel_path = str_replace(‘images.php’, ‘’, $_SERVER[‘PHP_SELF’]);
$path = $server . $rel_path;

// Find all folders in this directory
$albums = array();

$d = dir($dir);
while (false !== ($folder = $d->read())) {
  if ($folder != ‘.’ && $folder != ‘..’ && is_dir($folder)) {
  $albums[] = $folder;
  }
 
 
 
}
$d->close();

// Start writing XML
$o = ‘<?xml version=“1.0” encoding=“utf-8”?>’ . “\n<gallery>\n”;

// Cycle through albums
foreach($albums as $album) {
  // Path variables
  $loc_path = $path . $album . ‘/’;
  $full_path = $dir . DS . $album;
 
  // Find images in the large folder
  $images = array();
  $d2 = dir($full_path . DS . $large_folder);
  while (false !== ($image = $d2->read())) {
  { if (eregi(’.jpg|.gif|.png|.swf|.flv’, $image)) {
  $images[] = $image;}
 
 
 
  }}
  $d2->close();
 
  // Only write the album to XML if there are images
  if (!empty($images)) {
  natcasesort($images);
  // Pretty up the title
  $title = ucwords(preg_replace(’/_|-/’, ’ ‘, $album));

  // See if there is an album thumb present, if so add it in
  if (file_exists($full_path . DS . $album_preview_name)) {
  $atn = ’ tn=”’ . $loc_path . $album_preview_name . ‘“’;
  } else {
  $atn = ‘’;
  }
 
  // Only write tnPath if that folder exists
  if (is_dir($full_path . DS . $thumb_folder)) {
  $tn = ’ tnPath=”’ . $loc_path . $thumb_folder . ‘/”’;
 
 
 

  }
 
  // Album tag
  $o .= “\t” . ‘<album title=”’ . $title . ’” description=”” lgPath=”’ . $loc_path .

$large_folder . ‘/”’ . $tn . $atn . ‘>’ . “\n”;
 
  // Cycle through images, adding tag for each to XML
  foreach($images as $i) {

  //EXIF description
 
  {
            $exif = exif_read_data($loc_path . $large_folder . ‘/’ . $i, 0, true);
      $caption = $exif[‘IFD0’][‘software’];
  }
 
  $link = ‘’;
  if (isset($_GET[‘link’])) { $link = $loc_path . $large_folder . ‘/’ . $i; }
  $o .= “\t\t” . ‘[img]’ . $i . ” caption=”’ . $caption . ’”  link=”’ .

$link . ’” [/img]’ . “\n”;
  }
 
  // Close the album tag
  $o .= “\t</album>\n”;
  }
}

// Close gallery tag, set header and output XML
$o .= “</gallery>”;
header(‘Content-type: text/xml’);
die($o);
?>

[/PHP]

Thanks to anyone who can help!
Nick