How does DC comic navigation work?

grogberries · **Posted:** Sat Jul 30, 2011 11:49 pm

I'd like to do something similar for my site. I mean how you switch comics without reloading the page and having the url change so you can still link to particular comics.

grogberries · **Posted:** Sun Jul 31, 2011 12:23 am

Like I notice the url dons a similar cap to this message board url:

.php?(something here)

viewtopic.php?f=6&t=6218&p=250719#p250719

http://www.qwantz.com/index.php?comic=2010

Dezro · **Posted:** Sun Jul 31, 2011 1:09 am

It doesn't do anything crazy like you're thinking, it's just fast.

grogberries · **Posted:** Sun Jul 31, 2011 1:11 am

well regardless, it looks like I can avoid making individual webpages for each comic which is something I find enticing right now.

Do you know how it goes?

grogberries · **Posted:** Sun Jul 31, 2011 1:12 am

There are several webcomics that seem to do this now that I look around. It seems to me like it's a favorable system.

kevin · **Joined:** Wed May 27, 2009 3:15 pm **Posts:** 3806

Do you have any sort of CMS installed? cos it sounds like you want an S to M your C

kevin · **Joined:** Wed May 27, 2009 3:15 pm **Posts:** 3806

I once installed wordpress on a shared server so I think I know a little about what it means when "php" is in the url like that

grogberries · **Posted:** Sun Jul 31, 2011 1:36 am

I have a little. I vaguely familiar with word press and drupal. I'm not exactly sure they do what I want to do. Or I donno. I'm having trouble finding out how to use them.

Drear Pooson · **Joined:** Mon Apr 26, 2010 12:03 am **Posts:** 26263

"php" is onomatopoeia, right

Drear Pooson · **Joined:** Mon Apr 26, 2010 12:03 am **Posts:** 26263

the sound you make when
you see some pleb
thinking he can use the internet
:ugeek:

grogberries · **Posted:** Sun Jul 31, 2011 1:28 pm

Hmm. I think I stumbled on how it happens.

grogberries · **Posted:** Sun Jul 31, 2011 1:40 pm

Hmm. I think I stumbled on how it happens.

grogberries · **Posted:** Sun Jul 31, 2011 2:11 pm

http://php.net/manual/en/function.parse-url.php

Fancy Fancy!

revfitz · **Joined:** Wed May 27, 2009 1:26 pm **Posts:** 1782

you're barking up the wrong tree gbro
look up $_GET

Drear Pooson · **Joined:** Mon Apr 26, 2010 12:03 am **Posts:** 26263

GET_$
GET_PAID
CHI_CITY_MAYNE

The Beneflops · **Joined:** Wed May 27, 2009 1:17 pm **Posts:** 16722

DO bitches
WHILE crunk

grogberries · **Posted:** Sun Jul 31, 2011 3:09 pm

Venerable revfitz, do you have any more clues for me?

revfitz · **Joined:** Wed May 27, 2009 1:26 pm **Posts:** 1782

I don't really know what you're trying to do. Just go find a tutorial about PHP and read it and it will talk about how you use the ? stuff in the URL.

grogberries · **Posted:** Sun Jul 31, 2011 3:20 pm

I'm basically trying to do what Ryan North did with his comics. It looks like you can switch comics and have a linkable url without having to make thousands of html pages.

I'm still pretty new to php and programming in general. But it looks like this is something. Although it isn't altogether clear how it all works out. I'll just keep trying out stuff.

grogberries · **Posted:** Mon Aug 01, 2011 9:56 pm

Bwahahahahahahahaha! I have discovered secrets!

http://casualkarate.net/index.php?comic=0001

but the navagation has discovered some bugs

http://www.casualkarate.net/index.php?comic=-3

grogberries · **Posted:** Sat Aug 06, 2011 9:17 pm

Here's the code I use to get this to work in-case anyone is interested. If I'm doing something stupid in there, kindly let me know.

Code:

<?php

   $con = mysql_connect("database-url","login-name","password");

      if (!$con)

        {

        die('Could not connect: ' . mysql_error());

        }

      mysql_select_db("comic_sql", $con);

$comic = $_GET["comic"];

$home_result = mysql_query("SELECT * FROM comic_table ORDER BY ID DESC LIMIT 1");

$comicArray = mysql_fetch_array($home_result);

$home_comic = $comicArray[ID];

if(empty($_GET) || $comic == $home_comic)

   {

   $comic_img = "comic" . $home_comic;

   $alt = $comicArray[comicTitle];

   $previous_comic = "http://www.casualkarate.net/index.php?comic=" . ($home_comic - 1);

   $next_comic = "#";

   }

elseif($comic > 1)

   {

   $comic_img = "comic" . $comic;

   $result = mysql_query("SELECT * FROM comic_table WHERE ID=" . $comic);

   $alt_array = mysql_fetch_array($result);

   $alt = $alt_array[comicTitle];

   $previous_comic = "http://www.casualkarate.net/index.php?comic=" . ($comic - 1);

   $next_comic = "http://www.casualkarate.net/index.php?comic=" . ($comic + 1);

   }

else
   {
   
   $comic_img = "comic" . $comic;

   $result = mysql_query("SELECT * FROM comic_table WHERE ID=" . $comic);

   $alt_array = mysql_fetch_array($result);

   $alt = $alt_array[comicTitle];

   $previous_comic = "#";

   $next_comic = "http://www.casualkarate.net/index.php?comic=" . ($comic + 1);

   }

   mysql_close($con);

echo "<div class='comic'>";

echo   "<img src='comic_jpg/" . $comic_img . ".jpg' alt='" . $alt . "' />";      

echo "</div>";

echo "<ul class='next_previous'>";

echo "   <li><a class='previous_button' href='" . $previous_comic . "' />previous</a></li>";

echo "   <li><a class='next_button' href='" . $next_comic . "'>next</a></li>";

echo "</ul>";

?>

The Beneflops · **Joined:** Wed May 27, 2009 1:17 pm **Posts:** 16722

$alt = $alt_array[comicTitle];

I don't see what Big Salt has to do with comics
you are doing something stupid here

grogberries · **Posted:** Sat Aug 06, 2011 11:28 pm

Look how beautiful the code does my site:

http://casualkarate.net/

Dezro · **Posted:** Sun Aug 07, 2011 2:21 am

I see two things that pop out at me

1) don't double-space code
2) "http://www.casualkarate.net/index.php?comic=" appears a lot, so you should put it in a constant. I just looked up constants in php and they are kind of weird
but here's what you do (I think)

at the top of the code (right after <?php) write

Code:

define('BASE_URL', 'http://www.casualkarate.net/index.php')
define('COMIC_URL', BASE_URL.'?comic=')

and then replace every instance of "http://www.casualkarate.net/index.php?comic=" with COMIC_URL like so

Code:

$previous_comic = COMIC_URL . ($home_comic - 1);

now you can change the url by changing one line (although if you do change url schemes, please make an effort to not break the old urls). also, now there's less to mistype, and if you do mistype it then you should get an obvious error when the page is loaded instead of a 404 when the user clicks the link.
this is GOOD PROGRAMMER HABITS so whenever you end up using the same string or number a lot for the same reason you should think to yourself "hey dawg" (you call yourself dawg, right? anyway) "hey dawg, let's put this shit in a constant")

though you should probably get BASE_URL programatically. I don't know PHP tho and doing that is different depending on your server software so you're on your own if you want to try that.

revfitz · **Joined:** Wed May 27, 2009 1:26 pm **Posts:** 1782

yeah the double-spacing thing is a bit much

also you probably want to check whether $comic - 1 is a valid number, and not show the previous link if it isn't (to fix that one bug)

and if you are feeling really fancy you could redirect to the front page if someone puts something in the url that isn't a real comic number

revfitz · **Joined:** Wed May 27, 2009 1:26 pm **Posts:** 1782

oh, you already kind of fixed that one thing

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