<?php   #### zufallsbild.php ####

$_files = glob('*.{jpg,Jpg,JPG,png,Png,PNG,gif,Gif,GIF}',GLOB_BRACE);

if (count($_files) == 0) exit;

shuffle($_files);


/*
echo "<pre>\r\n";
echo htmlspecialchars(print_r($_files,1));
echo "</pre>\r\n";
*/


foreach( $_files as $filename )
{
    if (false !== ($_imginfo = getimagesize($filename)))
    {  
        header('Content-Type: '.$_imginfo['mime']);
        readfile($filename);
        exit;
    }
}

?>