the register globals check was deleting $base_uri from the global scope.

Reordening init.php solved this.

In the future we probably should use the constand SM_BASE_URI which doesn't
suffer from weird global behaviour

include/init.php

@@ -32,6 +32,45 @@ $SQM_INTERNAL_VERSION = array(1,5,2);
 error_reporting(E_ALL);
 
 
+/**
+ * If register_globals are on, unregister globals.
+ * Code requires PHP 4.1.0 or newer.
+ */
+if ((bool) @ini_get('register_globals')) {
+    /**
+     * Remove all globals from $_GET, $_POST, and $_COOKIE.
+     */
+    foreach ($_REQUEST as $key => $value) {
+        unset($GLOBALS[$key]);
+    }
+    /**
+     * Remove globalized $_FILES variables
+     * Before 4.3.0 $_FILES are included in $_REQUEST.
+     * Unglobalize them in separate call in order to remove dependency
+     * on PHP version.
+     */
+    foreach ($_FILES as $key => $value) {
+        unset($GLOBALS[$key]);
+        // there are three undocumented $_FILES globals.
+        unset($GLOBALS[$key.'_type']);
+        unset($GLOBALS[$key.'_name']);
+        unset($GLOBALS[$key.'_size']);
+    }
+    /**
+     * Remove globalized environment variables.
+     */
+    foreach ($_ENV as $key => $value) {
+        unset($GLOBALS[$key]);
+    }
+    /**
+     * Remove globalized server variables.
+     */
+    foreach ($_SERVER as $key => $value) {
+        unset($GLOBALS[$key]);
+    }
+}
+
+
 /**
  * calculate SM_PATH and calculate the base_uri
  * assumptions made: init.php is only called from plugins or from the src dir.
@@ -53,10 +92,8 @@ for($i = count($a) -2;$i > -1; --$i) {
 
 $base_uri = implode('/',array_slice($a,0,$i)). '/';
 
-
-
 define('SM_PATH',$sSM_PATH);
-
+define('SM_BASE_URI', $base_uri);
 /**
  * global var $bInit is used to check if initialisation took place.
  * At this moment it's a workarounf for the include of addrbook_search_html
@@ -88,43 +125,6 @@ if (get_magic_quotes_gpc()) {
     sqstripslashes($_POST);
 }
 
-/**
- * If register_globals are on, unregister globals.
- * Code requires PHP 4.1.0 or newer.
- */
-if ((bool) @ini_get('register_globals')) {
-    /**
-     * Remove all globals from $_GET, $_POST, and $_COOKIE.
-     */
-    foreach ($_REQUEST as $key => $value) {
-        unset($GLOBALS[$key]);
-    }
-    /**
-     * Remove globalized $_FILES variables
-     * Before 4.3.0 $_FILES are included in $_REQUEST.
-     * Unglobalize them in separate call in order to remove dependency
-     * on PHP version.
-     */
-    foreach ($_FILES as $key => $value) {
-        unset($GLOBALS[$key]);
-        // there are three undocumented $_FILES globals.
-        unset($GLOBALS[$key.'_type']);
-        unset($GLOBALS[$key.'_name']);
-        unset($GLOBALS[$key.'_size']);
-    }
-    /**
-     * Remove globalized environment variables.
-     */
-    foreach ($_ENV as $key => $value) {
-        unset($GLOBALS[$key]);
-    }
-    /**
-     * Remove globalized server variables.
-     */
-    foreach ($_SERVER as $key => $value) {
-        unset($GLOBALS[$key]);
-    }
-}
 
 /* strip any tags added to the url from PHP_SELF.
 This fixes hand crafted url XXS expoits for any
@@ -150,8 +150,6 @@ ini_set('session.name' , $session_name);
 session_set_cookie_params (0, $base_uri);
 sqsession_is_active();
 
-sqsession_register($base_uri, 'base_uri');
-
 /**
  * Remove globalized session data in rg=on setups
  */
@@ -160,6 +158,9 @@ if ((bool) @ini_get('register_globals')) {
         unset($GLOBALS[$key]);
     }
 }
+
+sqsession_register($base_uri, SM_BASE_URI);
+
 /**
  * Retrieve the language cookie
  */