I wrote this php. I doesn't work, and I can't see why. Apparently, all lines
work until I try to use getValue or setValue. I am not a php professional,
but this one looked simple enough...
<?php
error_reporting(E_ALL);
require_once('PelJpeg.php');
require_once('PelDataWindow.php');
require_once('PelTiff.php');
$jpeg = new PelJpeg
("/var/www/vhosts/esseninbeeld.be/httpdocs/fotoproject/fotos/fotogroot.jpg");
$exif = $jpeg->getExif();
$tiff = $exif->getTiff();
$ifd0 = $tiff->getIfd();
$desc = $ifd0->getEntry(PelTag::IMAGE_DESCRIPTION);
echo 'Beschrijving: '.$desc->getValue();
$desc->setValue('Nieuwe beschrijving');
file_put_contents
("/var/www/vhosts/esseninbeeld.be/httpdocs/fotoproject/fotos/fotogroot.jpg",
$jpeg->getBytes());
?>
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