title: Bootstrap select with search not working in php
body: <p>Bootstrap select search is not working.May be there is small thing i am missing.
  I have using bootstrap select which is working fine.Select options coming from database.added data-live-search="true" for search which is not working.Select dropdown not opening.</p>
  
  <p>Code is</p>
  
  <pre><code>&lt;link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" &gt;
    &lt;script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/js/bootstrap.min.js"&gt;&lt;/script&gt;
    &lt;link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.3/css/bootstrap-select.min.css" /&gt;
    &lt;script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.3/js/bootstrap-select.min.js"&gt;&lt;/script&gt;
  
  
  &lt;?php $sql = "select * from vehicle order by vehiclename";
  $vehicle_list = $mysqli-&gt;query($sql);
  
  $schematron_array['Level5'] == coming from different table ?&gt;
  
  &lt;label&gt;Vehicle&lt;/label&gt;
  &lt;select class="selectpicker form-control" data-live-search="true" name="vehicle"&gt;
      &lt;option value=""&gt;Select vehicle&lt;/option&gt;
      &lt;?php while( $row = $vehicle_list-&gt;fetch_array() ) { 
          if(!empty($row['vehiclename'])) {?&gt;
          &lt;option value="&lt;?php echo $row['vehiclename']; ?&gt;" &lt;?php echo ($schematron_array['Level5'] == $row['vehiclename'])?"selected":""; ?&gt; &gt;
          &lt;?php echo $row['vehiclename']; ?&gt;
          &lt;/option&gt;
          &lt;?php } } ?&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>Thanks.
  Please Forgive if any mistake is there.</p>