[REQUEST] Rock Band Name Generator

<?php
  // AS REQUESTED


  //Configuration\\
  $rock['forename'][] = 'Hell';
  $rock['forename'][] = 'Screaming';
  $rock['forename'][] = 'Scar';

  $rock['lastname'][] = 'Baron';
  $rock['lastname'][] = 'Skull';
  $rock['lastname'][] = 'Lord';

?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
       "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Rock Band Name-Generator</title>
</head>
<body>

  <?php
  if(!isset($_GET['forename']) && !isset($_GET['lastname'])){
    ?>
    <form action="<?=$_SERVER['PHP_SELF']?>">
      <p>Vorname:<br><input name="forename" type="text" size="30" maxlength="30"></p>
      <p>Nachname:<br><input name="lastname" type="text" size="30" maxlength="40"></p>
      <input type="submit">
    </form>
    <?php
  }else{
    $sent_forename = $_GET['forename'];
    $sent_lastname = $_GET['lastname'];
    $sent_forename_beg = substr($sent_forename, 0, 1);
    $sent_lastname_beg = substr($sent_lastname, 0, 1);
    $rock_forename_res = false;
    $rock_lastname_res = false;

    shuffle($rock['forename']);
    shuffle($rock['lastname']);
    foreach($rock['forename'] as $no=>$forename){
      if(!$rock_forename_res){
        if(substr($forename, 0, 1) == $sent_forename_beg){
          $rock_forename_res = $forename;
        }
      }
    }

    foreach($rock['lastname'] as $no=>$lastname){
      if(!$rock_lastname_res){
        if(substr($lastname, 0, 1) == $sent_lastname_beg){
          $rock_lastname_res = $lastname;
        }
      }
    }

    echo "Your Rock Band Name is: $rock_forename_res $rock_lastname_res";
    print_r(empty($forename));
  }
  ?>

</body>
</html>