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Now the trick I've done to accomplish this, I will warn you worked in the scenario it was designed in – (I had "permalinks" turned on. I'm not sure how this would work, if at all, if they weren't turned on, or if the permalink configuration was different) I'm sure there are probably other setups where this would not work. So, that's my disclaimer.

Basically what we're going to do is use the query string to determine whether or not to display comments or the post on the page. It's not terribly "pretty" – and maybe a htaccess expert can tell us how to accomplish the same task by adding a line or two in there to keep the URLs "pretty" – but in the meantime, I'm just happy to have it work at all!

So first – surround anything you would want only on the POST version of the page with this:
*UPDATED TO ADD: This problem/question has come up a number of times. These changes will probably go on your single.php template file (because thats the page that normally dispalys the comments.) If for some reason you don't have a single.php file, then your "single-post view" is probably being derived from the default single.php template file (in the default theme directory) – so it's probably safe to grab a copy of that one and make your changes to it, and then upload it to your theme's directory)

<?php if (!isset($_GET['show'])) { ?>
POST PAGE ONLY STUFF GOES HERE...
<?php } ?>

*ALSO UPDATED TO ADD:The code above should be WITHIN the "WP LOOP".

Inside there you will want to create a link that will bring the user to the "comment page" for the post. You do that like this:

<a href="?show=comments">Click here to view/write comments</a>

Then you wrap your call to the comments template like so:

<?php if (isset($_GET['show']) && $_GET['show'] == "comments") { ?>
<?php comments_template(); ?>
<?php } ?>

*UPDATED TO ADD: Take a look at where the comments_template() line normally goes on the default theme, if you're using a custom theme. You want to make sure you really only put that around the comments_template() line… not large sections of your single.php template file…

Now, ON your comments template page (comments.php), you will need to modify the comments form so that after a comment gets submitted, you end up back on the comment version of the page. To do that you need to grab the current URL of the page you're looking at – and put it into a hidden field (named "redirect_to") in the comment form. To get PHP to pull in the full URL, I grabbed this function from webcheatsheet.com:

function curPageURL() {
$pageURL = 'http';
if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
$pageURL .= "://";
if ($_SERVER["SERVER_PORT"] != "80") {
$pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
} else {
$pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
}
return $pageURL;
}

To make that available throughout, I created a "plugin" file, and just threw that function into it. (obviously have to activate the plugin before you can start using that function in your theme). (There's probably another way to "add a function" like that, but this worked for me) If you don't already have one, create a "functions.php" file for your theme and add that function in there (surrounded by <?php and ?> tags obviously)

So then before the </form> of the comment form I added this:

<?php if (function_exists('curPageURL')) { ?>
<input type="hidden" name="redirect_to" value="<?php echo curPageURL() ?>" />
<?php } ?>

That's it. Hope that helps someone else.

Updated:
Here are the modifications applied to the default wordpress theme. I've made comments to the changes I added in so you can see what I did and then apply it as appropriate to your own theme. In the zip are JUST the files I modified – not the whole wordpress default theme – so single.php, index.php, functions.php and comments.php.

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Warning: This is not just a plugin. You are going to add a few lines to a core WordPress file. Just so you know.

2 files need to be modified: wp-comments.php (to put in the checkbox for "don't remember my info" and the "delete my cookie" link), and wp-comments-post.php (to ensure that the cookie isn't saved if the user requests that it not be), and you need to install a plugin to handle manual "delete my cookie" requests. (Just a side note, and this applies to anytime you need to modify an existing page, you should make backups of the wp-comments.php, and wp-comments-post.php page before you make your changes)

Step 1

Open up wp-comments-post.php and find these lines (89, 90 and 91):

setcookie('comment_author_' . $cookiehash, $author, time() + 30000000, COOKIEPATH);
setcookie('comment_author_email_' . $cookiehash, $email, time() + 30000000, COOKIEPATH);
setcookie('comment_author_url_' . $cookiehash, $url, time() + 30000000, COOKIEPATH);

Change those lines to the following:

if($_POST['forget_cookie'] == 'forget'){
setcookie('comment_author_' . $cookiehash, ", time()-60000, COOKIEPATH);
setcookie('comment_author_email_' . $cookiehash, ", time()-60000, COOKIEPATH);
setcookie('comment_author_url_' . $cookiehash, ", time()-60000, COOKIEPATH);
} else {
setcookie('comment_author_' . $cookiehash, $author, time() + 30000000, COOKIEPATH);
setcookie('comment_author_email_' . $cookiehash, $email, time() + 30000000, COOKIEPATH);
setcookie('comment_author_url_' . $cookiehash, $url, time() + 30000000, COOKIEPATH);
}

Save wp-comments-post.php and upload the new version.

Step 2

Add the following code to your my-hacks.php.

/*
Code Reference Name: Forget User Info
URI: http://www.scriptygoddess.com/archives/2004/06/29/forget-user-info/
Description: Deletes the comment cookie when ?forget_user_info=1 is passed to the URL
Version: 1.0
Author: Mark Jaquith
Author URI: http://www.txfx.net/
*/
if($_GET['forget_user_info']) { // User has manually requested that their cookie be deleted.
setcookie('comment_author_' . $cookiehash, ", time()-60000, COOKIEPATH); setcookie('comment_author_email_' . $cookiehash, ", time()-60000, COOKIEPATH); setcookie('comment_author_url_' . $cookiehash, ", time()-60000, COOKIEPATH);
unset($comment_author, $comment_author_email, $comment_author_url);
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
header('Cache-Control: no-cache, must-revalidate');
header('Pragma: no-cache');
$location = $_SERVER["HTTP_REFERER"];
if ($is_IIS) {
header("Refresh: 0;url=$location");
} else {
header("Location: $location");
}
}

Step 3

Open up wp-comments.php.

Add this line, somewhere in the form section:
(You should also probably give the input a tabindex, and reorder any other input tabindexes that follow, so that your users don't become human pinballs when they press TAB to go to the next form element.)

<p>
<input type="checkbox" name="forget_cookie" id="forget_cookie" value="forget" />
<label for="forget_cookie">Do not save my info</label>
</p>

Add this line where you think it would be appropriate:

<?php if (strlen($comment_author) != 0 || strlen($comment_author_email) != 0 || strlen($comment_author_url) != 0) { echo '<p>Your info has been saved, but you may <a href="' . $_SERVER['REQUEST_URI'] . '?forget_user_info=1">delete your cookie</a> if you wish.</p>'; } ?>

Save your changes to wp-comments.php, upload the new version, and you're done!

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Even though this isn't a plugin, I thought this could work similar to the way I was doing comment highlighting

Again, after your comment loop:

<?php foreach ($comments as $comment) { ?>

Add the following (with edits as neccessary) :

<?php
$isByAuthor = false;
if($comment->comment_author_email == 'YOUR-EMAIL') {
$isByAuthor = true;
}
?>

Then before your comment text begins (with <?php comment_text() ?>) add this:

<?php if($isByAuthor ) { echo '<div class="authorcomment">';} ?>

To close the DIV tag – BEFORE the ending LI tag for the comment add this

<?php if($isByAuthor ) { echo '</div>';} ?>

Then add a style "authorcomment" to your style sheet. Style however you like.

Then as long as you use that email when you comment – the comment will be highlighted.

See alternate (simplified) variations in the comments

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I had actually originally asked MooKitty for a plugin/hack that would do it:
Here is her script.

I think her solution is very well-done. It means updates to the interface so you can easily see which post was noted as "important", etc. However, after having lived through a few MT upgrades, I've been trying to avoid editing any core WordPress code, so that I don't have to start worrying about a dozen hacks I could lose when I upgrade my CMS.

Here's my solution. It may not be as elegant, but it gets the job done.

On your wp-comments.php file, after this line of code:

<?php foreach ($comments as $comment) { ?>

Add the following:

<?php
$isImportant = false;
if (stristr($comment->comment_content, "<!–important–>")) {
$isImportant = true;
} ?>

Then before your comment text begins (with <?php comment_text() ?>) add this:

<?php if($isImportant) { echo '<div class="importantcomment">';} ?>

To close the DIV tag – BEFORE the ending LI tag for the comment add this

<?php if($isImportant) { echo '</div>';} ?>

Then add a style "importantcomment" to your style sheet. Style however you like.

When you want to mark a comment as "important" simply edit it and in the very beginning of the comment add this:

<!–important–>

The kind of neat thing is, I can see an easy hack/addition to this where you could have "levels" of importance – with each level having a different style.

The drawbacks of my idea vs. MooKitty's is that with mine, techincally anyone can add the "important" text to their comment, and make theirs stand out. (You would just need to edit it to remove the important notation – if you wanted to). As well, without looking at your blog, or clicking edit on each comment, there's no easy way to tell from the comment listing pages which comments have been marked as important – like you can with hers.

So, pick your poison, I guess. But wanted to show you both options.

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So I combined the two…

(IMPORTANT NOTE: I'm still working out the kinks with this script. If you use this and have issues – please email me (scripty aT scriptygoddess dOt nEt) – don't leave a comment… that way the comments section doesn't get out of hand… I'd prefer to keep the comments section reversed for either modifications/alternate hacks or additional suggestions)

Here is the modified "create table" script

CREATE TABLE useronline (
timestamp int(15) DEFAULT '0' NOT NULL,
ip varchar(40) NOT NULL,
file varchar(100) NOT NULL,
userName varchar(50) NOT NULL,
userURL varchar(100) NOT NULL,
PRIMARY KEY (timestamp),
KEY ip (ip),
KEY file (file)
);

The way the Spoono's original script worked was that it would (I believe) only tell you how many users were on a particular page – but the way my script below works is that it shows users on the entire site…

On Lynda's site, she pointed out that you need to modify the "rememberme" and "forgetme" javascript functions. See her site for the details.

Now here's the updated script. (I made this a seperate file and put it on my site as an include where I wanted to the "users on site" to display)

<?php
//fill in some basic info
$dbsvr= "localhost";
$dbusrnam = "your-database-username";
$dbpswrd = "your-database-password";
$database = "your-database-name";
$timeoutseconds = 300;
$mt_name = isset($_COOKIE['mtcmtauth']) ? ($_COOKIE['mtcmtauth']) : "";
$mt_url = isset($_COOKIE['mtcmthome']) ? ($_COOKIE['mtcmthome']) : "";
$mt_ip = getenv("HTTP_X_FORWARDED_FOR") ? getenv("HTTP_X_FORWARDED_FOR") : getenv("REMOTE_ADDR");
// If someone doesn't want their name to appear on the list, enter their
// urls below, separated by a comma. Example:
// $blocked_urls = "http://www.domain1.com, http://www.domain2.com";
$blocked_urls = "";
// If user is in blocked report above, make them anonymous and then add to file
if ($blocked_urls !="") {
$blocked = explode(",", $blocked_urls);
for ($i=0; $i < count($blocked); $i++) {
if (trim($blocked[$i]) == $mt_url) {
$mt_name = "";
$mt_url = "";
}
}
}
//get the time
$timestamp = time();
$timeout = $timestamp-$timeoutseconds;
//connect to database
mysql_connect($dbsvr, $dbusrnam, $dbpswrd);
//insert the values
$insert = mysql_db_query($database, "INSERT INTO useronline VALUES
('$timestamp','$mt_ip ','','$mt_name','$mt_url');");
if(!($insert)) {
print "Useronline Insert Failed > ";
}
//delete values when they leave
$delete = mysql_db_query($database, "DELETE FROM useronline WHERE timestamp < $timeout");
if(!($delete)) {
print "Useronline Delete Failed > ";
}
//grab the results
$result = mysql_db_query($database, "SELECT DISTINCT ip, userName, userURL FROM useronline");
if(!($result)) {
print "Useronline Select Error > ";
}
//number of rows = the number of people online
$user = mysql_num_rows($result);
$display = "";
$annon = 0;
mysql_close();
for ($i = 0; $i < $user; $i++) {
$row= mysql_fetch_array($result);
if ($row["userName"] != "" && $row["userURL"] != "") {
//make sure url has "http://" in it
$isHttpUrl = strpos($row["userURL"], "http://");
if ($isHttpUrl === false) {
$row["userURL"] = "http://".$row["userURL"];
}
$display .= "<a href=\"".$row['userURL']."\">".$row["userName"] ."</a><br />";
} else if ($row["userName"] != "") {
$display .= $row["userName"] ."<br />";
} else {
$annon++;
}
}
if ($display != "") {
echo $display;
}
if ($annon != "") {
echo $annon;
if ($annon <= 1) {
echo " user";
} else {
echo " users";
}
}
?>

To use this script with wordpress, change these two lines in the script above:

$mt_name = isset($_COOKIE['mtcmtauth']) ? ($_COOKIE['mtcmtauth']) : "";
$mt_url = isset($_COOKIE['mtcmthome']) ? ($_COOKIE['mtcmthome']) : "";

To this:

$mt_name = (isset($_COOKIE['comment_author_'.$cookiehash])) ? trim($_COOKIE['comment_author_'.$cookiehash]) : '';
$mt_url = (isset($_COOKIE['comment_author_url_'.$cookiehash])) ? trim($_COOKIE['comment_author_url_'.$cookiehash]) : '';

(yes, I know the variables still say "mt" in them – if that really confuses you, just do a find and replace and change them.

If you have MOVED OVER from MT to WP – and still want to capture the names of people who may or may not have left a comment on your wordpress blog yet (so they don't have cookies from wp comments – but probably still have MT cookies), change those lines to this instead:

$mt_name = (isset($_COOKIE['comment_author_'.$cookiehash])) ? trim($_COOKIE['comment_author_'.$cookiehash]) : '';
if ($mt_name == '') {
$mt_name = isset($_COOKIE['mtcmtauth']) ? ($_COOKIE['mtcmtauth']) : "";
}
$mt_url = (isset($_COOKIE['comment_author_url_'.$cookiehash])) ? trim($_COOKIE['comment_author_url_'.$cookiehash]) : '';
if ($mt_url == '') {
$mt_url = isset($_COOKIE['mtcmthome']) ? ($_COOKIE['mtcmthome']) : "";
}

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