Introduction¶

New Hello World!¶

<?php
$message = "Hello World!";
echo $message;
?>

Simple Web Script¶

<?php
$message = "Hello World!";
$title = "HTML Sample";
?>

<!DOCTYPE html>
<html>
    <head>
        <title>PHP Fundamentals - <?=$title?></title>
    </head>
    <body>
        <h1><?php echo $message ?></h1>
    </body>
</html>

Note

Reserved Keywords and Variables

if, else, while, and, or, return, new, class, switch, break, for, foreach, static, public require, require_once, include, include_once, extends, continue, print, echo, var endfor, endif, endforeach, endswitch, endwhile $_GET, $_POST, $_COOKIE, $_SERVER, $_FILES, $_ENV, $this,