Walk directory and find md5 hashes

md5walk.php

<?php

function md5sum($filenm)
{
$val = md5_file($filenm);
echo $filenm.":".$val."<br/>"."\n";
}


//read folder 
$folder=opendir(".");
while ($file = readdir($folder)){
	$names[]=$file;
    }
closedir($folder); 

array_walk($names, 'md5sum');


?>


<?php  
/*
function rnd($min, $max){//mt_rand wrapper, seeds automatically, once per page

    global $rnd_seeded;

    if ($rnd_seeded!=1){//seed if not seeded

        $mtime=microtime();

        list($usec,$sec)=explode(" ",$mtime);

        mt_srand($usec*$sec);

        $rnd_seeded=1;

        }

    return mt_rand($min, $max);

    }

    

$def_img_url="<DEFAULT-SIG-URL>";
    //default image to redirect to if no images exist in random dir



//read folder 

$folder=opendir(".");

while ($file = readdir($folder)){

    $ext=strtolower(substr(trim($file),-4));

    if ($ext==".jpg"||$ext==".gif"||$ext==".jpeg"||$ext==".png")$imgs[]=$file;

    }

closedir($folder); 



if (is_array($imgs)){

    header ("location: ".$imgs[rnd(0, count($imgs)-1)]);

}else{

    header ("location: $def_img_url");

    }
*/
?>