php - unexpected end of file and when solved doesn't work -

this piece of code giving me unexpected end of file. don't know what's wrong. when change : @ end issue of error gone code stops working. no longer fetches me data. when copy code jsfiddle closing </section> tag , closing </div> tag, second last in red color. idea why? tags in wrong order?

<?php while ($r = $q->fetch()): ?> 

here full code i'm working on if interested or got clues.

<section id="portfolio" class="two">   <div class="container">      <header>       <h2>latest answers</h2>     </header>      <?php require_once 'dbconfig.php';  try {     $conn = new pdo("mysql:host=$host;dbname=$dbname", $username, $password);     echo "connected $dbname @ $host successfully.";     $sql = "select *              as_questions              answer not null , answer != ''";        $q = $conn->query($sql);     $q->setfetchmode(pdo::fetch_assoc);  } catch (pdoexception $pe) {     die("could not connect database $dbname :" . $pe->getmessage()); } ?>       <table>         <?php while ($r = $q->fetch()): ?>           <div class="span3 tiny">             <div class="pricing-table-header-tiny">               <h1 id="h1q"><?php echo htmlspecialchars($r['question']);?></h1>               </div>             <div>               <div class="pricing-table-features">                 <p id="dassp2">                   <?php echo htmlspecialchars($r['answer'])?>                 </p>               </div>               <div>                 <p id="dassp">answered by:                   <?php echo htmlspecialchars($r['doctor'])?>                 </p>               </div>             </div>            </div>    </div>   <div id="qref">     <a href="#" id="s">more answers</a>   </div> </section> 

while (expr):     statement     ... endwhile; 

you need close loop - more info here http://php.net/manual/en/control-structures.while.php