What Is Php And What Can It Does

When your browser access URLs, it's making a request to a web server. If you are requesting PHP page, apache wakes PHP up and says: "Hey.. dude! you got something to do. Get the file ready so that I can bring it back to that guy over there."

Thus, PHP engine execute the code found within the scripts, it will return to web server in HTML format. The above code will output the result below.

Very simple isn't it! Take a closer look at the PHP code above. PHP script is opened and closed with special php tags. <?php represents the beginning and ?> is the ending of PHP code. It can also be written in Javascript and ASP style but the default style is preferred

What can PHP do?
Almost anything! Even if PHP is not a truly object oriented programming, but it can do almost anything for your web development such as sending email, collecting data, create dynamic pages and much much more to server side scripting ability.