In the next lesson, you’ll start creating your own PHP code. Take a second and review what you already know about PHP:

• Despite its age, PHP is still a commonly used technology in web development.
• PHP is designed to interact with HTML to generate dynamic websites.
• Embedding PHP in HTML is done by placing PHP code between <?php and ?> tags.
• Every statement in PHP must be terminated with a semicolon ;.
• PHP files have a .php extension and the file always starts with the opening PHP tag <?php. The closing tag is implied and left out by convention.
• Whitespace is generally ignored when executing PHP code.
• Keywords are not case sensitive in PHP. As a convention, use the standard casing.
• Single line comments are made in PHP using # or //. Multi-line comments are placed between /* and */.