Link and image not matching up

[Xtremer360]

What I'm trying to do is have it match up the image file name wiht the same name as the link. Sometimes it does but sometimes obviously the image is random. Any ideas?

 

 

function spotlight($dbc){ 
$query = "
    SELECT 
        * 
    FROM 
        characters 
    WHERE 
        characters.statusID = 1 AND characters.styleID = 1 
    ORDER BY 
        RAND() 
    LIMIT 
        1"; 
$result = mysqli_query($dbc, $query);
$row = mysqli_fetch_array($result);
    $shortName = $row[ 'shortName' ];
$labels = array('shortName');
    $img = array();
if($handle = opendir('images/spotlight/')) {
	$count = 0;
	while (false !== ($file = readdir($handle))) {
		if(strlen($file) > 2){
			$img[$count] = $file;
			$count++;
		}
	}
}
echo "<a href='bio.php?shortName=" . $shortName . "'><img src='/images/spotlight/".$img[rand(0, (count($img)-1))]."' alt=Spotlight border=0 /></a>";
}