Items of Make Your Joomla! website compatible or designed for Joomla 3 :
How to add inline CSS into a Joomla PHP page.
Blank Extensions(components, modules, plugins, languages pack) for Joomla v3.x to download freely as a basis for further customisations.
How to get current URI in Joomla PHP pages.
How to get Itemid of a specific Joomla article.
How to get URL parameters in Joomla PHP pages.
How to load a CSS file into a Joomla PHP page.
MYJ Galleryis a free and stand-alone Joomla! module. It creates responsive fullscreen gallerieswith touch gestures, adaptable to all resolutions and devices.
How to make a select query in several tables in Joomla.
How to make a select query in Joomla.
How to make a simple query in Joomla to select one single record from one single table.