Oh I see, you do have a database...
Well then it would be a bit like this:
<?php
if(isset($_GET['member'])) {
$member = mysql_real_escape_string($_GET['member']); // Make safe for query
// I'm going to assume you have a table called members
$memberq = mysql_query("SELECT * FROM members WHERE `id` = '$member'");
if(mysql_num_rows($memberq)) { // If any rows are returned
$row = mysql_fetch_row($memberq); // Since Id will be / is a primary key, only one record will be returned
/* So we use mysql_fetch_row as we don't need a while loop to go through multiple records
Only drawback is that the row comes back as a numerical array so we have to use [0] to address columns
We'll say the setup is like this:
[0] = id (Unique identifier)
[1] = name
[2] = bio (biography)
[3] = location
[4] = email
Obviously these are just test columns and you can add different ones if you want
I just don't know what data you'll want on the member's page
Break out of PHP to output HTML
*/
?>
<div id="memberheader"><?php echo $row[1] . '\'s profile.'; ?></div>
<div id="memberinfo">
<h3>About <?php echo $row[1]; ?></h3>
Biography: <?php echo $row[2]; ?>
<p>Location: <?php echo $row[3]; ?></p>
<p>Email: <?php echo $row[4]; ?></p>
</div>
<?php
}
else {
echo "The member you're looking for doesn't exist.";
}
}
?>
That's the structure of what I think you're looking for, of course you can build on this with more advanced functions and you'll need to make it look presentable :p
Hope this helps you out though.