Fill html dropdown using array from database php -


i'm trying fill dropdown in html code below.i have searched here other questions , tried not working me? can me find mistake?

<form  id="data" class="form-geofence" role="form" method="post" action="geofencedata.php">                 <select name="category_id">                     <option value="">--- select ---</option>                     <?php                          include_once'./connectionusers.php';                         $result=pg_query("select * geofence;");                         while ($row = pg_fetch_array($result)) {                     ?>                     <option value="" ><?php echo $row["name"];?></option>                     <?php                              }                     ?>                 </select>

i have used same php code seperately , shows names

make sure database connection right, , use below code

<form  id="data" class="form-geofence" role="form" method="post" action="geofencedata.php">             <select name="category_id">                 <option value="">--- select ---</option>                 <?php                      include_once'./connectionusers.php';                     $result=pg_query("select value geofence;");                     while ($row = pg_fetch_array($result)) {                      echo "<option value='".$row['value']."'>".$row['value']."</option>";                        }                 ?>              </select>

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