<?php
// +-----------------------------------------------------------------------+
// | Piwigo - a PHP based photo gallery |
// +-----------------------------------------------------------------------+
// | Copyright(C) 2008-2016 Piwigo Team http://piwigo.org |
// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
// +-----------------------------------------------------------------------+
// | This program is free software; you can redistribute it and/or modify |
// | it under the terms of the GNU General Public License as published by |
// | the Free Software Foundation |
// | |
// | This program is distributed in the hope that it will be useful, but |
// | WITHOUT ANY WARRANTY; without even the implied warranty of |
// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
// | General Public License for more details. |
// | |
// | You should have received a copy of the GNU General Public License |
// | along with this program; if not, write to the Free Software |
// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA. |
// +-----------------------------------------------------------------------+

$filename = 'sample.jpg';
echo 'Informations are read from '.$filename.'<br><br><br>';

/**
* return a cleaned IPTC value
*
* @param string value
* @return string
*/
function clean_iptc_value($value)
{
// strip leading zeros (weird Kodak Scanner software)
while ( isset($value[0]) and $value[0] == chr(0))
{
$value = substr($value, 1);
}
// remove binary nulls
$value = str_replace(chr(0x00), ' ', $value);

return $value;
}

$iptc_result = array();
$imginfo = array();
getimagesize($filename, $imginfo);
if (isset($imginfo['APP13']))
{
$iptc = iptcparse($imginfo['APP13']);
if (is_array($iptc))
{
foreach (array_keys($iptc) as $iptc_key)
{
if (isset($iptc[$iptc_key][0]))
{
if ($iptc_key == '2#025')
{
$value = implode(
',',
array_map(
'clean_iptc_value',
$iptc[$iptc_key]
)
);
}
else
{
$value = clean_iptc_value($iptc[$iptc_key][0]);
}

$iptc_result[$iptc_key] = $value;
}
}
}

echo 'IPTC Fields in '.$filename.'<br>';
$keys = array_keys($iptc_result);
sort($keys);
foreach ($keys as $key)
{
echo '<br>'.$key.' = '.$iptc_result[$key];
}
}
else
{
echo 'no IPTC information';
}

echo '<br><br><br>';
echo 'EXIF Fields in '.$filename.'<br>';
$exif = read_exif_data($filename);
echo '<pre>';
print_r($exif);
echo '</pre>';
?>