Syntax
PHP's syntax is similar to most other programming languages as C and Java. A PHP script always starts with <?php and ends with ?> That script can be placed anywhere in the document.
<html> <head> <title>Simple PHP Page</title> </head> <body> <?php echo "Hello World"; //This is a comment /* This is another comment */ ?> </body> </html>
Each code line in PHP must end with a semicolon.
Here we used the PHP function echo to write Hello World.
In PHP, we use // to make a single line comment or /* and */ to write multiple line comments.