If we need to select 20 random filenames from the pics folder e.g.\\
<code>
<?php
$files = array();
foreach (glob("/home/example/public_html/pics/*.jpg") as $file) { $files[] = basename($file); }
shuffle($files);
echo '<img style="display: block; opacity: 0.95;" src="pics/'.array_pop($files).'" />'."\n";
if ( count($files) > 20) { $t = array_slice($files,1,20); } else { $t = $files; }
foreach ($t as $file) { echo '<img src="pics/'.$file.'" />'."\n"; }
?>
</code>