数据未进入下拉列表

Question

I am trying to fetch some data from my db to a dropdown. But it does not work. This is my code. Thanks

<div class="col-md-5">
   <select multiple class="form-control" style="height: 100px" id="experienceEdit">
     <?php
         $sqlVessel = "SELECT * FROM vessel_types ORDER BY vessel_types ASC";
         $resultVessel = $conn->query($sqlVessel);

         if ($resultVessel->num_rows > 0) {
              // output data of each row
              while ($rowVessel = $resultVessel->fetch_assoc()) {
      ?>
      <option class="experienceValEdit"  value="<?php echo $rowVessel['idvessel_types']; ?>"><?php echo $rowVessel['vessel_types']; ?></option>
      <?php
            }
               } else {

               }
      ?>

Answer 1

Check this line.

  if ($resultVessel->num_rows > 0) {

There should be a -

I think this should generate some erros. Isnt it?@usinshif