pulling data from multiple tables on the same page

Question

I'm stuck on this code and can't figure out where I need to go. I'm trying to pull name, phone number and email from table "contacts" which is dispayed on page and on the same page post notes to table "contactnotes" and then display them under the textbox. I can't figure out how to do it all on the same page. Here is what I have thus far.

 <?php
 mysql_connect ("link","db","pw") or die ('Error: ' .mysql_error());
 mysql_select_db ("db");

 $ID = $_GET['ID'];
 $notes = $_POST['notes'];

 $query="INSERT INTO contactnotes (id, notes)VALUES ('NULL', '".$notes."')";

 mysql_query($query) or die ('Error Updating Database');


 $sql = "SELECT * FROM contacts WHERE ID='$ID' limit 1" or die ('Error: ' .mysql_error());
 $result = mysql_query($sql) or die ('Error: ' .mysql_error());

 while ($row = mysql_fetch_array($result);

 ?>

 <!-- CONTACT INFO -->
 <div id="contact-table"><?php include("contact-info.php"); ?></div>
 <br />
 <form method="post" action="/db/notes.php?ID=<? echo $row['ID']; ?>"/>
 <input type="hidden" value="<? echo $row['id']; ?>" name = "id" id="id"/>  
 <br />

 <input type="submit" value="Edit Contact">
 <input type="submit" value="Delete Contact">
 <br />
 <br />
 <hr />
 <table border="0" cellpadding="0" cellspacing="0" width="100%">
 <tbody>
 <tr>
 <td><strong>Notes</strong></td>
 </tr>
 <tr>  
 <td><textarea name="notes" id="notes" rows="5" cols="100"></textarea></td>
 </tr>
 </table>
 <br />
 <hr/>
 <br />
 <table width="950" border="0" cellspacing="0" cellpadding="3">
 <tr>
 <td align="left" width="100%"><h5><strong><? echo $row['user']; ?> on <? echo date("F d Y @ h:i:s", strtotime($row['timestamp'])); ?> wrote:</strong></h5></td>
 </tr>
 <tr>
 <br />
 <td align="left" width="100%"><? echo $row['notes']; ?></td>
 </tr>
 </table>
 <hr/>
 <br />
 <input type="submit" value="Edit Contact">
 <input type="submit" value="Delete Contact">
 </form>
 <?
 mysql_close();
 ?>

Answer 1

查看MySQL JOIN 。