无法使用php从MySQL获取所有数据

Question

以下代码仅提取CustomerID和电子邮件，第2列和第3列不显示任何数据。我做错了什么？

    <?php 
    /*  
            VIEW.PHP 
            Displays all data from 'customer' table 
    */ 

            // connect to the database 
            include('customerDBconnection.php'); 

            // get results from database 
            $result = mysql_query("SELECT * FROM customer")  
                    or die(mysql_error());   

            echo "<table border='0.2' cellpadding='10'>"; 
            echo "<tr>              
                        <th>ID</th>
                        <th>Name</th> `enter code here`
                        <th>SimcardNumber</th>  
                        <th>email</th>  
                        <th>email</th>
                </tr>"; 

            // loop through results of database query, displaying them in the table 

下面的表显示假设从phpmyadmin调用列只调用第一列和第四列，其余的都保留为空白

while($row = mysql_fetch_array( $result )) { 

                    // echo out the contents of each row into a table  
                    echo "<tr>"; 
                    echo '<td>' . $row['CustomerID'].'</td>'; 
                    echo '<td>' . $row['Name']. '</td>'; 
                    echo '<td>' . $row['SimcardNumber'].'</td>'; 
            echo '<td>' . $row['email']. '</td>'; 
                    echo "</tr>";  
            }  

            // close table> 
            echo "</table>"; 
    ?>