Tournaments with some Validation


<html>
<body bgcolor="#000">
<?php
  function ExistsAndIsNotEmpty($name)
  {
    return (isset($_POST[$name]) && !empty($_POST[$name]));
  }

  $tourneyname = (ExistsAndIsNotEmpty('tournamentname')) ? htmlentities($_POST["tournamentname"]) : '';
  $start = (ExistsAndIsNotEmpty('start')) ? htmlentities($_POST["start"]) : '';
  $location = (ExistsAndIsNotEmpty('location')) ? htmlentities($_POST["location"]) : '';
  $prize = (ExistsAndIsNotEmpty('prize')) ? htmlentities($_POST["prize"]) : '';
  $brackets = (ExistsAndIsNotEmpty('brackets')) ? htmlentities($_POST["brackets"]) : '';
  $signup = (ExistsAndIsNotEmpty('signup')) ? htmlentities($_POST["signup"]) : '';
  $stream = (ExistsAndIsNotEmpty('stream')) ? htmlentities($_POST["stream"]) : '';
  $forum = (ExistsAndIsNotEmpty('forum')) ? htmlentities($_POST["forum"]) : '';

  if (isset($_POST['submit']))
  {
    if (!empty($tourneyname)
      && !empty($start)
      && !empty($location)
      && !empty($prize)
      && !empty($brackets)
      && !empty($signup)
      && !empty($stream)
      && !empty($forum))
    {
      $tourneyname = htmlentities($_POST["tournamentname"]);
      $start = htmlentities($_POST["start"]);
      $location = htmlentities($_POST["location"]);
      $prize = htmlentities($_POST["prize"]);
      $brackets = htmlentities($_POST["brackets"]);
      $signup = htmlentities($_POST["signup"]);
      $stream = htmlentities($_POST["stream"]);
      $forum = htmlentities($_POST["forum"]);

      $updatedPosts = <<< HTML
        <tr>
          <td>
              <font color="white">$tourneyname</font>
          </td>
          <td>
              <font color="white">$start</font>
          </td>
          <td>
              <font color="white">$location</font>
          </td>
          <td>
              <font color="white">$prize</font>
          </td>
          <td>
              <font color="white"><a href="$brackets">Brackets</a></font>
          </td>
          <td>
              <font color="white"><a href="$signup">Sign Up</a></font>
          </td>
          <td>
              <font color="white"><a href="$stream">Stream</a></font>
          </td>
          <td>
              <font color="white"><a href="$forum">Forum</a></font>
          </td>
        </tr>
HTML;

      $fileHandler = fopen("posts.txt", "c");
      fwrite($fileHandler, $updatedPosts);
      fclose($fileHandler);
    }
    else
    {
      echo '<div class="error">';

      if (empty($tourneyname))
      {
        echo 'Please provide the tournament name.<br />';
      }

      if (empty($start))
      {
        echo 'Please provide the tournament start date.<br />';
      }

      if (empty($location))
      {
        echo 'Please provide the tournament location.<br />';
      }

      if (empty($prize))
      {
        echo 'Please provide the prize information for the tournament.<br />';
      }

      if (empty($brackets))
      {
        echo 'Please provide the bracket URL.<br />';
      }

      if (empty($signup))
      {
        echo 'Please provide the sign up URL.<br />';
      }

      if (empty($stream))
      {
        echo 'Please provide the stream URL.<br />';
      }

      if (empty($forum))
      {
        echo 'Please provide the forum URL.<br />';
      }

      echo '</div>';
    }
  }
?>
<form id="form1" name="form1" method="post" action="">
    <table>
        <tr>
            <td><input type="text" name="tournamentname" placeholder="Tournament Name" size="13" maxlength="20" value="<?=$tourneyname; ?>" /></td>
            <td><input type="text" name="start" placeholder="01/01/0101" size="13" maxlength="10" value="<?=$start; ?>" /></td>
            <td><input type="text" name="location" placeholder="SC2: Sentinel Gaming" size="13" maxlength="25" value="<?=$location; ?>" /></td>
            <td><input type="text" name="prize" placeholder="$10" size="13" maxlength="10" value="<?=$prize; ?>" /></td>
            <td><input type="url" name="brackets" placeholder="URL" size="10" value="<?=$brackets; ?>" /></td>
            <td><input type="url" name="signup" placeholder="URL" size="10" value="<?=$signup; ?>" /></td>
            <td><input type="url" name="stream" placeholder="URL" size="10" value="<?=$stream; ?>" /></td>
            <td><input type="url" name="forum" placeholder="URL" size="10" value="<?=$forum; ?>" /> </td>
        </tr>

        <tr>
            <td colspan="8" align="right"><input type="submit" name="submit" id="submit" value="Submit Tournament" /></td>
        </tr>
    </table>
    <table>
        <tr>
            <td><font color="white" size="3"><b>Tournament Name</b></font></td>
            <td><font color="white" size="3"><b>Start</b></font></td>
            <td><font color="white" size="3"><b>Location</b></font></td>
            <td><font color="white" size="3"><b>Prize</b></font></td>
            <td><font color="white" size="3"><b>Brackets</b></font></td>
            <td><font color="white" size="3"><b>Signup</b></font></td>
            <td><font color="white" size="3"><b>Stream</b></font></td>
            <td><font color="white" size="3"><b>Forum</b></font></td>
        </tr>
        <?php include("posts.txt"); ?>
    </table>
</form>
</body>
</html>