Where can I find which functions have been removed from PHP 5.4?
<p>I'm working with a very old code base, and I need to know which functions have been removed in PHP 5.4 so that I can address them before upgrading. Can anybody tell me where I can find a list of functions that have been removed? I've looked at the Changelog, but it doesn't seem to list them. For example, I know that session_is_registered() has been removed, but I can't find any mention of it other than on documentation page for that function.</p>
