demo_merge.php

<?php

// Display the asked source file.
function f_source($file) {
	echo '<!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>OpenTBS plug-in for TinyButStrong - demo source</title></head><body>'.highlight_file($file,true).'</body></html>';
}

// Retrieve the template to open
$template = (isset($_POST['tpl'])) ? $_POST['tpl'] : '';

$template = 'demo_oo_text.odt';
$template = basename($template); // for security

$info= pathinfo($template);
$script = $info['filename'].'.php';

// Checks
if (substr($template,0,5)!=='demo_') exit("Wrong file.");
if (!file_exists($template)) exit("The asked template does not exist.");

include($script);
exit;