How to fix the session_register()
deprecated problem in PHP 5.3
This question is related to
php
session
deprecated
To complement Felix Kling's answer, I was studying a codebase that used to have the following code:
if (is_array($start_vars)) {
foreach ($start_vars as $var) {
session_register($var);
}
} else if (!(empty($start_vars))) {
session_register($start_vars);
}
In order to not use session_register they made the following adjustments:
if (is_array($start_vars)) {
foreach ($start_vars as $var) {
$_SESSION[$var] = $GLOBALS[$var];
}
} else if (!(empty($start_vars))) {
$_SESSION[$start_vars] = $GLOBALS[$start_vars];
}
if you need a fallback function you could use this
function session_register($name){
global $$name;
$_SESSION[$name] = $$name;
$$name = &$_SESSION[$name];
}
I wrote myself a little wrapper, so I don't have to rewrite all of my code from the past decades, which emulates register_globals and the missing session functions.
I've picked up some ideas from different sources and put some own stuff to get a replacement for missing register_globals and missing session functions, so I don't have to rewrite all of my code from the past decades. The code also works with multidimensional arrays and builds globals from a session.
To get the code to work use auto_prepend_file
on php.ini to specify the file containing the code below. E.g.:
auto_prepend_file = /srv/www/php/.auto_prepend.php.inc
You should have runkit extension from PECL installed and the following entries on your php.ini:
extension_dir = <your extension dir>
extension = runkit.so
runkit.internal_override = On
.auto_prepend.php.inc:
<?php
//Fix for removed session functions
if (!function_exists('session_register'))
{
function session_register()
{
$register_vars = func_get_args();
foreach ($register_vars as $var_name)
{
$_SESSION[$var_name] = $GLOBALS[$var_name];
if (!ini_get('register_globals'))
{ $GLOBALS[$var_name] = &$_SESSION[$var_name]; }
}
}
function session_is_registered($var_name)
{ return isset($_SESSION[$var_name]); }
function session_unregister($var_name)
{ unset($_SESSION[$var_name]); }
}
//Fix for removed function register_globals
if (!isset($PXM_REG_GLOB))
{
$PXM_REG_GLOB=1;
if (!ini_get('register_globals'))
{
if (isset($_REQUEST)) { extract($_REQUEST); }
if (isset($_SERVER)) { extract($_SERVER); }
//$_SESSION globals must be registred with call of session_start()
// Best option - Catch session_start call - Runkit extension from PECL must be present
if (extension_loaded("runkit"))
{
if (!function_exists('session_start_default'))
{ runkit_function_rename("session_start", "session_start_default"); }
if (!function_exists('session_start'))
{
function session_start($options=null)
{
$return=session_start_default($options);
if (isset($_SESSION))
{
$var_names=array_keys($_SESSION);
foreach($var_names as $var_name)
{ $GLOBALS[$var_name]=&$_SESSION[$var_name]; }
}
return $return;
}
}
}
// Second best option - Will always extract $_SESSION if session cookie is present.
elseif ($_COOKIE["PHPSESSID"])
{
session_start();
if (isset($_SESSION))
{
$var_names=array_keys($_SESSION);
foreach($var_names as $var_name)
{ $GLOBALS[$var_name]=&$_SESSION[$var_name]; }
}
}
}
}
?>
before PHP 5.3
session_register("name");
since PHP 5.3
$_SESSION['name'] = $name;
We just have to use @
in front of the deprecated function. No need to change anything as mentioned in above posts. For example: if(!@session_is_registered("username")){ }
. Just put @
and problem is solved.
Use $_SESSION
directly to set variables. Like this:
$_SESSION['name'] = 'stack';
Instead of:
$name = 'stack';
session_register("name");
Source: Stackoverflow.com