curl_exec() getting https://\n";
    echo "". htmlspecialchars(http_get('https://www.uk-cheapest.co.uk/qxq')) ."\n";
    echo "curl_exec() getting http://
\n";
    echo "". substr(htmlspecialchars(http_get('http://rhaworth.me/404.htm')),0,530) ."\n";
    echo "file_get_contents() getting https://
\n";
    echo "". substr(htmlspecialchars(
               file_get_contents('https://mathiasbynens.be/notes/minimal-html')),0,299) ."\n";
    echo "file_get_contents() getting http://
\n";
    echo "". substr(htmlspecialchars(
               file_get_contents('http://rhaworth.me/404.htm')),0,530) ."\n";
    echo "parse_ini_file() 
\n";
    $ans=parse_ini_file("../../httpdocs/test/sample.ini");
    echo "\n\n". var_export($ans,true) ."\n\n
This server does not allow_url_fopen so highlight_file() is a ".
             "completely harmless function
\n";
        # next must be separate echo to get error messages after the heading
        echo "\n\n". highlight_file("http://posp.org.uk/book/dopapac.php",true) .
             "\n\n
\n";
    }
    echo "show_source()
\n";
    echo "\n\n". show_source($samp_fn,true) ."\n\n
\n";
    if (!isset($_REQUEST['api'])) {
        echo "highlight_file()
\n";
        echo "\n\n". highlight_file($samp_fn,true) ."\n\n
\n";
        echo "highlight_file() - without the highlighting - using ".
             "file_get_contents() to display this script
\n";
        echo "". htmlspecialchars(@file_get_contents($_SERVER['SCRIPT_FILENAME'])) ."
\n";
?>