There is a function called apply_filter where you can use it like this:
echo apply_filter('the_content', $my_content);
It add formatting tags and clean up the content.
Trac or docs
I looked in the trac and docs but could not find what functions are used in the apply_filter function.
I found wpautop
The only one I found was wpautop:
http://codex.wordpress.org/Function_Reference/wpautop
What more? Hint me to the trac or some docs with a list of functions that are used.
You can use the global
$wp_filter
array to check for callbacks on each filter. Here is for example a code snippet that prints out all the callbacks on thethe_content
filter in the footer part of your theme:The priority
10
part could look like this: