All php scripts have an opening tag
<?php and a closing tag
?> all of your php script / code goes between these tags.
We will use
echo to output our string "Hello World" all strings are surrounded by quotation marks " .
The semicolon ; at the end of the line signifies that we have finished with this line and wish to move on to the next.
<?php
echo "Hello World";
?>
Welcome to the very powerful world of PHP.