- return session_unregister($var);
- } elseif (("".$value."" != '') && (!isSessionVariableSet($var))) {
+ if (phpversion() >= '5.3.1') {
+ // session_unregister() is deprecated as of 5.3.1
+ return true;
+ } else {
+ // PHP version < 5.3.1
+ return session_unregister($var);
+ }
+ } elseif (('' . $value . '' != '') && (!isSessionVariableSet($var))) {