least give me some ideas on what the PHP code trying to do?
Thanks
<?php
$allowed_formats = array("jpg", "jpeg", "JPG", "JPEG", "png", "PNG");
$exclude_files = array(
"_derived",
"_private",
"_vti_cnf",
"_vti_pvt",
"vti_script",
"_vti_txt"
); // add any other folders or files you wish to exclude from the gallery.
$path = array();
if(isset($_GET['file_dir'])){
$file_dir = $_GET['file_dir'];
$dir=opendir($file_dir);
while ($file=readdir($dir))
{
$ext = substr($file, strpos($file, ".")+1);
if(array_search($file, $exclude_files)===false &&
array_search($ext, $allowed_formats)!==false){
$f=$file_dir.'/'.$file;
$path []=$f;
}
}
closedir($dir);
}
natcasesort($path);
print '<?xml version="1.0" encoding="iso-8859-1"?>';
print '<pics';
print '>';
$directory= $_SERVER['HTTP_HOST'] .$_SERVER['PHP_SELF'];
$directory=dirname($directory);
foreach ($path as $val) print '<pic
src="'.'http://'.$directory.'/'.$val.'" title="'.$val.'" />';;
print "</pics>";
?>
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