php guide code example
Example 1: ?? php
?: // !empty()
?? // isset()
Example 2: php
PHP is a general-purpose scripting language especially suited to
web development.
It was originally created by Danish-Canadian programmer
Rasmus Lerdorf in 1994;
the PHP reference implementation is now produced by The PHP Group
Implementation language: C (primarily; some components C++)
Example 3: basic php
<?php
// This is a comment
echo 'Hello, World!';
// And this outputs Hello, World!
?>