<select>未填充，按钮与<select>内联

I'm working with html, php and bootstrap to create some lists and buttons. My first questions is that I have written a script populate a "select" drop down list. It should go to the "sounds/" directory and populate itself with .wav files. The "select" shows up properly, it just doesn't populate the list. I do have .wav files in the directory and I gave full permissions to the directory itself. So its not that.

My other question is how would I put a button inline with the the "select" drop down. I don't want on the next line down.

<!--CALL TAB-->
<div id="call">
  <div class="container">
  <div class="hero-unit">
      <h5>Call Functions -</h5>
      <h6>Test Paragraph</h6>

      <br>

      <h6> Select a Sound One -</h6>
      <div class="row">
        <div class="span2">
          <select id="sound1">
            <?php 
              foreach(glob('sounds/*.wav') as $filename){
              $rest = substr($filename, 7);    
              echo "<option>".$rest."</option>";
              }
            ?>
          </select>
        </div>
      </div>

      <br>

      <h6> Select a Sound Two -</h6>
      <div class="row">
        <div class="span2">
          <select id="sound2"> 
            <?php 
              foreach(glob('sounds/*.wav') as $filename){
              $rest = substr($filename, 7);    
              echo "<option>".$rest."</option>";
              }
            ?>
          </select>
        </div>
      </div>

      <br>

      <h6>Volume - </h6>
      <div id="slider-range-max">
      </div>
    <div class="row">
      <div class="span6">
        <br>
        <p><a class="btn btn-large btn-primary" href="index.html">Play <i class="icon-   play"></i></a> <a class="btn btn-large btn-danger" href="index.html">Pause <i class="icon-pause"></i></a>
      </div>
    </div>
  </div>

  <hr>

    <footer>
      <p>&copy; FOOTER</p>
    </footer>
  </div>
</div>

Getting the button next to the select is simple. If you're not styling the select or button to be a block element, then they should appear next to each other (inline block). If the HTML below doesn't work for you (button is not next to select), then try adding float: left; to both the select and button.

For your glob(), are you sure the path is correct? Where is the PHP file that's executing this versus the sounds folder? What's your directory structure?

http://jsfiddle.net/3JQeZ/

<div class="row">
    <div class="span2">
        <select id="sound1">
            <option>1 option</option>
            <option>2</option>
            <option>3</option>
        </select>
        <button>Button</button>
    </div>
</div>