simple guide to create custom tag

note : I’m using WordPress 2.0

anyone ?

Take a look at my My Tags plugin. It doesn’t allow for unique attributes (i.e. id=’14’), but with some mods one could get it to handle them:

https://www.ads-software.com/support/topic/32984#post-186878

I just need to know where to implement the filtering of the wordpress content to call my custom function

You can implement it almost anywhere you like, actually. Preferably in a plugin or in functions.php or something. Before your Loop executes, anyway.

function your_function($content)
{
// $content contains the content of the actual post
// you can modify content all you like and return it,
// and that's how it's modified
return $content;
}
// this adds your filter into the_content chain, so
// that every post's content will get passed into
// your function
add_filter('the_content','your_function');

A simple example:
function add_giggity($content) {
return $content." Giggity!";
}
add_filter('the_content','add_giggity');

For your particular case, you’ll probably want to have your function do a regexp match on the incoming content and replace that text with your embed text as appropriate. I’d look into the preg_match and preg_replace PHP functions if I were you. Very handy.

thanks guys