<!DOCTYPE html> <html lang="en" xmlns="http://www.w3.org/1999/xhtml"> <!-- Our second PHP-enabled HTML document...? now with require_once-provided server-side-includes! by: Sharon Tuttle last modified: 2024-03-19 you can run this using the URL: https://nrs-projects.humboldt.edu/~st10/s24cs328/328lect09-1/328lect09-1-play2.php made the XHTML version for strict-validation using: php 328lect09-1-play2.php > 328lect09-1-play2.xhtml --> <head> <title> 328lect09-1-play2 </title> <meta charset="utf-8" /> <?php /*=== including the definition of function square from file square.php ===*/ require_once("square.php"); ?> <link href="https://nrs-projects.humboldt.edu/~st10/styles/normalize.css" type="text/css" rel="stylesheet" /> </head> <body> <h1> Our Second PHP-enabled document! </h1> <?php // Note the PHP expression tags below // calling the PHP function square. ?> <p> Please show me the square of 2.5: <?= square(2.5) ?> </p> <p> Please show me the square of 4: <?= square(4) ?> </p> <?php /*=== including this CS 328 class footer boilerplate from 328footer.html ===*/ require_once("328footer.html"); ?> </body> </html>