CSS Colour Detection

[RickyLeone]

I host a lot of Invision 1.3 forums. Often enough, members change the colors of the board, and then the google adsense code remains the same, with the same old colors (causing for a poorer EPM). I was wondering if there was a code that could detect the main CSS colors of the board and use them. If it helps, this is the code for phpBB:

<script type="text/javascript"><!--
google_ad_client = "pub-#*$!#*$!#*$!#*$!#*$!xx";
google_ad_width = 728;
google_ad_height = 90;
google_ad_format = "728x90_as";
google_ad_channel ="";
google_color_border = "<?php echo $theme['body_bgcolor'];?>";
google_color_bg = "<?php echo $theme['body_tr'];?>";
google_color_link = "<?php echo $theme['body_link'];?>";
google_color_url = "<?php echo $theme['body_text'];?>";
google_color_text = "<?php echo $theme['body_text'];?>";
//--></script>
<script type="text/javascript"
src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>

[lightheaded]

I'm sure it's possible to think around this one. On my site for example, I create xml files dynamically using php. The way I do this is to include a files directive in an .htaccess file so that php will parse an .xml file extension as if it were php. For example the following will parse news.xml as if it were news.php

<Files news.xml>
ForceType application/x-httpd-php
</Files>

What I'm driving at here is that it will also be possible to do the same for css files so that the attributes etc. can be variables.

Maybe there's a clue to solving your problem there?

[jatar_k]

you could check for a colour other than your default colour and then set those vars to something else

//initailize some vars
$google_color_border = '';
$google_color_bg = '';
$google_color_link = '';
$google_color_url = '';
$google_color_text = '';

// check if the user changed the theme
if ($theme['body_bgcolor'] == 'some hex colour') {
$google_color_border = $theme['body_bgcolor'];
$google_color_bg = $theme['body_tr'];
$google_color_link = $theme['body_link'];
$google_color_url = $theme['body_text'];
$google_color_text = $theme['body_text'];
} else {
// set the above vars to the default colours in this chunk
}

then echo the new vars

google_color_border = "<?php echo $google_color_border;?>";
google_color_bg = "<?php echo $google_color_bg;?>";
google_color_link = "<?php echo $google_color_link;?>";
google_color_url = "<?php echo $google_color_url;?>";
google_color_text = "<?php echo $google_color_text;?>";

I obviously don't know what colours you want to use or test for but the theory here would work

[DrDoc]

...
if ($theme['body_bgcolor'] == 'some hex colour') {
...

That should be:

...
if ($theme['body_bgcolor'] != 'some hex colour') {
...

[jatar_k]

ah, I see, I was thinking the theme came from the board

if they have changed it from the default board colours, then use other default ad colour

[DrDoc]

No, I think you were thinking right ... But shouldn't the code check if the default is not used, and if so use the current theme colors? If, on the other hand, the default is used (the

else

part), the default ad colors should also be used.

[jatar_k]

I would put the most common occurence in the if condition, whichever it is

[RickyLeone]

Yeah, but I've got to have a code where I don't have to specify the colours, as anyone can pick any background colour they want. I need a code like the initial code I listed (the adsense code for phpBB), where it'll automatically obtain the colours without any configuration.

[pixeltierra]

I don't think you can check the color easily with php unless their option is stored in a database.

You could try javascript (on page load) to check the value of color and play with it from there. It would be easy enough. Google "getElementById" and css properties in javascript and you'll be good to go.