...
author = request->get_form_field( 'author' ).
response->set_cookie( name = 'author' value = author ).
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Jane Smith
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Wiley Hacker

HTTP/1.1 200 OK
...

...
Cookie cookie = new Cookie('author', author, '/', -1, false);
ApexPages.currentPage().setCookies(new Cookie[] {cookie});
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Jane Smith
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Wiley Hacker

HTTP/1.1 200 OK
...

protected System.Web.UI.WebControls.TextBox Author;
...
string author = Author.Text;
Cookie cookie = new Cookie("author", author);
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Jane Smith
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Wiley Hacker

HTTP/1.1 200 OK
...

  <cfcookie name = "author"
  value = "#Form.author#"
  expires = "NOW">  

HTTP/1.1 200 OK
...
Set-Cookie: author=Jane Smith
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Wiley Hacker

HTTP/1.1 200 OK
...

...
author := request.FormValue("AUTHOR_PARAM")
cookie := http.Cookie{
  Name:       "author",
  Value:      author,
  Domain:     "www.example.com",
}
http.SetCookie(w, &cookie)
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Jane Smith
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Wiley Hacker

HTTP/1.1 200 OK
...

author = form.author.value;
...
document.cookie = "author=" + author + ";expires="+cookieExpiration;
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Jane Smith
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Wiley Hacker

HTTP/1.1 200 OK
...

<?php
    $author = $_GET['AUTHOR_PARAM'];
    ...
    header("author: $author");
?>

HTTP/1.1 200 OK
...
Set-Cookie: author=Jane Smith
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Wiley Hacker

HTTP/1.1 200 OK
...

    location = req.field('some_location')
    ...
    response.addHeader("location",location)

HTTP/1.1 200 OK
...
location: index.html
...

HTTP/1.1 200 OK
...
location: index.html

HTTP/1.1 200 OK
...

...
author = Request.Form(AUTHOR_PARAM)
Response.Cookies("author") = author
Response.Cookies("author").Expires = cookieExpiration
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Jane Smith
...

HTTP/1.1 200 OK
...
Set-Cookie: author=Wiley Hacker

HTTP/1.1 200 OK
...

    func handler(w http.ResponseWriter, r *http.Request) {
        subject := r.FormValue("subject")
        body := r.FormValue("body")
        auth := smtp.PlainAuth("identity", "user@example.com", "password", "mail.example.com")
        to := []string{"recipient@example.net"}
        msg := []byte("To: " + recipient1 + "\r\n" + subject + "\r\n" + body + "\r\n")
        err := smtp.SendMail("mail.example.com:25", auth, "sender@example.org", to, msg)
        if err != nil {
            log.Fatal(err)
        }
    }
  

  ...
  subject: [Contact us query] Page not working
  ...
  

  ...
  subject: [Contact us query] Congratulations!! You won the lottery
  cc: victim1@mail.com,victim2@mail.com
  ...
  

$subject = $_GET['subject'];
$body =  $_GET['body'];
mail("support@acme.com", "[Contact us query] " . $subject, $body);

...
subject: [Contact us query] Page not working
...

...
subject: [Contact us query] Congratulations!! You won the lottery
cc: victim1@mail.com,victim2@mail.com
...

body = request.GET['body']
subject = request.GET['subject']
session = smtplib.SMTP(smtp_server, smtp_tls_port)
session.ehlo()
session.starttls()
session.login(username, password)
headers = "\r\n".join(["from: webform@acme.com",
                       "subject: [Contact us query] " + subject,
                       "to: support@acme.com",
                       "mime-version: 1.0",
                       "content-type: text/html"])
content = headers + "\r\n\r\n" + body
session.sendmail("webform@acme.com", "support@acme.com", content)

...
subject: [Contact us query] Page not working
...

...
subject: [Contact us query] Congratulations!! You won the lottery
cc: victim1@mail.com,victim2@mail.com
...

    ...
    String lang = Request.Form["lang"];
    WebClient client = new WebClient();
    client.BaseAddress = url;
    NameValueCollection myQueryStringCollection = new NameValueCollection();
    myQueryStringCollection.Add("q", lang);
    client.QueryString = myQueryStringCollection;
    Stream data = client.OpenRead(url);
    ...

    <%
        ...
        $id = $_GET["id"];
        header("Location: http://www.host.com/election.php?poll_id=" . $id);
        ...
    %>