<?php
$words = array("Appel"=>"","Armen"=>"","Aders"=>"","Boten"=>"","Boven"=>"","Breed"=>"","Conus"=>"","Cadet"=>"","Clown"=>"");
$a=array_rand($words,1);
$b=print_r($a);

$first= substr($a, -5, -4);

echo("<br/>The word contains 5 letters.<br/>");
?>
<html>
<head>
    <title>Lingo</title>
</head>
<body>
<?php
echo("<br/>Give it a try (5):");
?>
    <form action="output.php" method="get">
        <input type='text' name='input' id='input' value='<?php echo($first)?>' maxlength='5'>
        <input type='submit' value='Guess'>
    </form>

</body>
</html>