CSPP552: Internet Programming, PHP part 7

Other web server input in PHP

• Environment variables (like HTTP_COOKIE) are transformed into regular PHP variables (eg, $HTTP_COOKIE)
• Lists of form input variables are in the $HTTP_GET_VARS and $HTTP_POST_VARS arrays

Cookies in particular:

• Cookie variables are also transformed into PHP variables
• A list of cookie variables is in the $HTTP_COOKIE_VARS associative array. From before, we had that `favband' parameter in the cookie. Well, that'd just be $HTTP_COOKIE_VARS["favband"].
• You can avoid all of that nasty header stuff and set a cookie with the setcookie function. Example:
  setcookie("favband", "Ramones", time()+14400,
  "/", "mikado.cs.uchicago.edu", 0);
• However, you MUST set the cookie as the first thing in the document, before you write any HTML.