If you intend to create web applications or websites with dynamic user interaction and Ajax support, then you'll need to use a scripting language such as PHP, which is the most popular, and is also available on most web servers.
     PHP also has remarkably similar structure to JavaScript so, with just a few tweaks here and there, what you learned in the introduction to JavaScript in Chapter 5 can also be used with PHP. This means that having learned JavaScript you should find this chapter a breeze, and after finishing it you'll have the basics of another programming language under your belt.

• Link to Zend Server CE download site
• A multi-line echo statement using heredoc syntax
• Using the Magic Constants for debugging
• Using ternary syntax
• Function to round a floating point value
• Using a global variable in a function
• Processing a form sent using a POST request
• Processing a form sent using a GET request
• Inserting HTML from another website into a <div> using Ajax

Most examples in this book require the latest version of any of Microsoft Internet Explorer, Google Chrome, Mozilla Firefox, Apple Safari, Opera, iOS or Android in order to work correctly. To see how the examples work use your browser's View Source feature, or download the examples file, unzip the contents and examine the files in a text editor.