I'm just starting to have a dig around in the Wordpress codex because I'm undertaking my first simple plugin.
Can I ask, is the $content variable a reserved variable for the_content() function. The actual $content variable is all over Wordpress, but I can't seem to find any information on it? When you search in the codex it just brings up info on the_content()
Any help / pointers on what it does and its usage would be awesome.