A PHP file contains HTML tags and some PHP scripting code. It is very easy to create a simple PHP example. To do so, create a file and write HTML tags + PHP code and save this file with .php extension.
A PHP script starts with <?php
And ends with ?>
Note: PHP statements ends with semicolon (;).
<?php
// PHP code goes here
?>
<!DOCTYPE html>
<html>
<body>
<h1>My first PHP WEB PAGE</h1>
<?php
echo “Hello World!”;
?>
</body>
</html>