--- /dev/null
+--TEST--
+Bug #24592 (crash when multiple NULL values are being stored)
+--INI--
+register_globals=0
+html_errors=0
+--FILE--
+<?php
+@session_start();
+
+$foo = $_SESSION['foo'];
+$bar = $_SESSION['bar'];
+
+var_dump($foo, $bar, $_SESSION);
+
+$_SESSION['foo'] = $foo;
+$_SESSION['bar'] = $bar;
+
+var_dump($_SESSION);
+?>
+--EXPECTF--
+Notice: Undefined index: foo in %s on line %d
+
+Notice: Undefined index: bar in %s on line %d
+NULL
+NULL
+array(0) {
+}
+array(2) {
+ ["foo"]=>
+ NULL
+ ["bar"]=>
+ NULL
+}