What is the Code?
Programming, or coding, is like solving a puzzle. Consider a human language, like English or French. We use these languages to turn thoughts and ideas into actions and behavior. In programming, the goal of the puzzle is the same — you’re just driving different kinds of behavior, and the source of that behavior isn’t a human. It’s a computer.
A programming language is our way of communicating with software. The people who use programming languages are often called programmers or developers. The things we tell software using a programming language could be to make a webpage look a certain way, or to make an object on the page move if the human user takes a certain action.
Programming Code in Web Development
So, when a web designer is given an end goal like “create a webpage that has this header, this font, these colors, these pictures, and an animated unicorn walking across the screen when users click on this button,” the web designer’s job is to take that big idea and break it apart into tiny pieces, and then translate these pieces into instructions that the computer can understand — including putting all these instructions in the correct order or syntax.
Every page on the web that you visit is built using a sequence of separate instructions, one after another. Your browser (Chrome, Firefox, Safari, and so on) is a big actor in translating code into something we can see on our screens and even interact with. It can be easy to forget that code without a browser is just a text file — it’s when you put that text file into a browser that the magic happens. When you open a web page, your browser fetches the HTML and other programming languages involved and interprets it.
- CSS Code is used to control presentation, formatting, and layout.
- PHP Code is usually processed on a web server by a PHP interpreter implemented as a module, a daemon or as a Common Gateway Interface (CGI) executable.