We now have our own training module which has all the lessons that covers the core topics on WordPress and the various steps involved in WordPress development. Check it out
Added following points:
Difference between action and filter.
Use of action and filter with simple examples.
filter and action functions with reference URL.
reference URLS.
Added following points: Difference between action and filter. Use of action and filter with simple examples. filter and action functions with reference URL. reference URLS.