<?php
$username="user";
$password="pass";
$database="database";

mysql_connect(localhost,$username,$password);
@mysql_select_db($database) or die( "Unable to select database");
$query="SELECT * FROM phonebook ORDER by extension";
$result=mysql_query($query);

$num=mysql_num_rows($result);

?>
<table border="0" cellspacing="5" cellpadding="5">
<tr>
<th><font face="Arial, Helvetica, sans-serif">Firstname</font></th>
<th><font face="Arial, Helvetica, sans-serif">Surname</font></th>
<th><font face="Arial, Helvetica, sans-serif">Direct Dial</font></th>
<th><font face="Arial, Helvetica, sans-serif">Extension</font></th>
</tr>

<?php
$i=0;
while ($i < $num) {

$f1=mysql_result($result,$i,"firstname");
$f2=mysql_result($result,$i,"surname");
$f3=mysql_result($result,$i,"direct_dial");
$f4=mysql_result($result,$i,"extension");
?>

<tr>
<td><font face="Arial, Helvetica, sans-serif"><?php echo $f1; ?></font></td>
<td><font face="Arial, Helvetica, sans-serif"><?php echo $f2; ?></font></td>
<td><font face="Arial, Helvetica, sans-serif"><?php echo $f3; ?></font></td>
<td><font face="Arial, Helvetica, sans-serif"><?php echo $f4; ?></font></td>
</tr>

<?php
$i++;
}
?>