Resolve a "Warning: mysqli_fetch_array()...

Here's my code. How to resolve this Warning. The page actually works on my local environment, but doesn't parse when uploaded to dev.


 

  <?php 
    define('DB_IP', 'localhost');                   // MySQL Server
    define('DB_USERNAME', 'xxx');       	        //database username
    define('DB_PASSWORD', 'xxx');       		//database password
    define('DB_DATABASE', 'navigator_data');        //database
    
    class test_object   // proxy for web service object
    {
        public $contractVehicle = array(
            0=>'ITSchedule70',
            1=>'ITCommodityProgram',
    	2=>'Army CHESS',
    	3=>'NASA SEWP'
        );
    
        function get_contract()
        {
            return $this->contractVehicle;
        }
    }
    
    $var = new test_object(); // the variable get back from webservice
    
    $connection = mysqli_connect(DB_IP,DB_USERNAME,DB_PASSWORD,DB_DATABASE); // connection to navigator_data
    
    $qry_nav_data = "SELECT * FROM contract_vehicle"; // formulate the SQL query
    
    $result = mysqli_query($connection, $qry_nav_data); // execute the query
    
    // display results in HTML table
    echo "<table border='1'>
    <tr>
    <th>contract_vehicle_id</th>
    <th>vehicle_name</th>
    </tr>";
    
    while($row = mysqli_fetch_array($result)) {
      echo "<tr>";
      echo "<td>" . $row['contract_vehicle_id'] . "</td>";
      echo "<td>" . $row['vehicle_name'] . "</td>";
      echo "</tr>";
    }
    echo "</table>";
    
    mysqli_close($connection);
    ?>

Select allOpen in new window