You need to read your files into an array first before you can sort them. How about this?
<?php
$dirFiles = array();
// opens images folder
if ($handle = opendir('Images')) {
while (false !== ($file = readdir($handle))) {
// strips files extensions
$crap = array(".jpg", ".jpeg", ".JPG", ".JPEG", ".png", ".PNG", ".gif", ".GIF", ".bmp", ".BMP", "_", "-");
$newstring = str_replace($crap, " ", $file );
//asort($file, SORT_NUMERIC); - doesnt work :(
// hides folders, writes out ul of images and thumbnails from two folders
if ($file != "." && $file != ".." && $file != "index.php" && $file != "Thumbnails") {
$dirFiles[] = $file;
}
}
closedir($handle);
}
sort($dirFiles);
foreach($dirFiles as $file)
{
echo "<li><a href="Images/$file" class="thickbox" rel="gallery" title="$newstring"><img src="Images/Thumbnails/$file" alt="$newstring" width="300" </a></li>
";
}
?>
Edit: This isn't related to what you're asking, but you could get a more generic handling of file extensions with the pathinfo() function too. You wouldn't need a hard-coded array of extensions then, you could remove any extension.
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