Delphi is a good language for desktop applications, but not much good for web pages.
Javascript is good for web pages and for the client side of web applications. PHP is good for serving dynamic web pages and for the server side of web applications. Neither is much good for destop applications.
So, pick what you want to do. Standard C++ is pretty wimpy for application development. You need nonstandard class libraries to effectively do anything with windows (text or graphical). So, unless you are also learning a framework (Win32, MFC, GTK+, Qt, .NET with "managed" C++, etc.) you won't have a lot of desktop app skills. Delphi comes with a pretty good object-oriented application framework. The language is based on Pascal, and is comfortable to use--but switching back and forth from C-based coding to Pascal-based coding can make even a seasoned programmer dizzy. (C uses = for assignment, == for comparison and {} braces for blocks. Pascal uses := for assignment, = for comparison, and {} braces for comments!)
If you want to work on web pages, instead, first learn HTML and CSS. Learn to use them as intended: HTML for page content and CSS for page presentation ("style"). Then learn Javascript for modifying and animating both content and style on a page. Then learn PHP (or ASP.NET) for delivering web pages that are modified or entirely created "on-the-fly". There are a few versions of HTML around, but the only ones to consider studying right now are HTML 4.01 and/or XHTML 1.0. These are "nearly" the same, and both are supported by all major browsers, but coding in XHTML will get you in the habit of creating "well-formed" documents.
Two different directions; take your pick. And have fun--it's a lot easier to get good at something if you enjoy what you're doing. And vice-versa.