sql server 2012 - No display of database names using php by a dropbown -

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the names of database in sql server not displaying in drop down. here codes.can suggest solution. 

<body>     <?php       $query = "select [name] master.dbo.sysdatabases dbid > 4";      $params = array();      $options =  array( "scrollable" => sqlsrv_cursor_keyset );      $stmt = sqlsrv_query($conn, $query, $params, $options );       echo '<select name="test" style="width: 100px;>';          while( $row = sqlsrv_fetch_array ($stmt, sqlsrv_fetch_assoc))           {             //unset($code);             //$code= $row['org_code'];               echo '<option value="'.$row['name'].'</option>';            }       echo '</select>';          ?>


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