functions/global.php

   1 <?php
   2
   3 /**
   4  * globals.php
   5  *
   6  * Copyright (c) 1999-2002 The SquirrelMail Project Team
   7  * Licensed under the GNU GPL. For full terms see the file COPYING.
   8  *
   9  * This includes code to update < 4.1.0 globals to the newer format
  10  * It also has two session register functions that work across various
  11  * php versions.
  12  *
  13  * $Id$
  14  */
  15
  16
  17 /* convert old-style superglobals to current method
  18  * this is executed if you are running PHP 4.0.x.
  19  * it is run via a require_once directive in validate.php
  20  * and redirect.php. Patch submitted by Ray Black.
  21  */
  22
  23 if ( (float)substr(PHP_VERSION,0,3) < 4.1 ) {
  24   global $_COOKIE, $_ENV, $_FILES, $_GET, $_POST, $_SERVER, $_SESSION;
  25   global $HTTP_COOKIE_VARS, $HTTP_ENV_VARS, $HTTP_POST_FILES, $HTTP_GET_VARS,
  26          $HTTP_POST_VARS, $HTTP_SERVER_VARS, $HTTP_SESSION_VARS;
  27   $_COOKIE  =& $HTTP_COOKIE_VARS;
  28   $_ENV     =& $HTTP_ENV_VARS;
  29   $_FILES   =& $HTTP_POST_FILES;
  30   $_GET     =& $HTTP_GET_VARS;
  31   $_POST    =& $HTTP_POST_VARS;
  32   $_SERVER  =& $HTTP_SERVER_VARS;
  33   $_SESSION =& $HTTP_SESSION_VARS;
  34 }
  35
  36 function sqsession_register ($var, $name) {
  37     $rg = ini_get('register_globals');
  38     if ( (float)substr(PHP_VERSION,0,3) < 4.1 && empty($rg)) {
  39         global $HTTP_SESSION_VARS;
  40         $HTTP_SESSION_VARS["$name"] = $var;
  41     }
  42     else {
  43         session_register("$name");
  44     }
  45 }
  46 function sqsession_unregister ($name) {
  47     $rg = ini_get('register_globals');
  48     if ( (float)substr(PHP_VERSION,0,3) < 4.1 && empty($rg)) {
  49     global $HTTP_SESSION_VARS;
  50         unset($HTTP_SESSION_VARS["$name"]);
  51     }
  52     else {
  53         session_unregister("$name");
  54     }
  55 }
  56
  57 /**
  58  *  Search for the var $name in $_SESSION, $_POST, $_GET
  59  *  (in that order) and register it as a global var.
  60  */
  61 function sqextractGlobalVar ($name) {
  62     global $_SESSION, $_GET, $_POST, $$name;
  63
  64     if( isset($_SESSION[$name]) ) {
  65         $$name = $_SESSION[$name];
  66     }
  67     if( isset($_POST[$name]) ) {
  68         $$name = $_POST[$name];
  69     }
  70     else if ( isset($_GET[$name]) ) {
  71         $$name =  $_GET[$name];
  72     }
  73 }
  74 ?>