Call to undefined function session_status()

hiho im a new one

if i use Session i got this error message Call to undefined function session_status()

edit:

PHP 5.3.10-1 ubuntu3.15 phalcon 2.0.8

ext/phalcon/session/adapter.zep.c

/**

• Returns the status of the current session. For PHP 5.3 this function will always return SESSION_NONE

• *<code>

• var_dump($session->status());
• // PHP 5.4 and above will give meaningful messages, 5.3 gets SESSION_NONE always
• if ($session->status() !== $session::SESSION_ACTIVE) {
• $session->start();

• } </code> /

  PHP_METHOD(Phalcon_Session_Adapter, status) {

  int ZEPHIR_LAST_CALL_STATUS;
  zval *status = NULL;
  
  ZEPHIR_MM_GROW();
  
  if (!(zephir_is_php_version(**50300**))) {
          ZEPHIR_CALL_FUNCTION(&status, "session_status", NULL, 61);
          zephir_check_call_status();
          do {
                  if (ZEPHIR_IS_LONG(status, 0)) {
                          RETURN_MM_LONG(0);
                  }
                  if (ZEPHIR_IS_LONG(status, 2)) {
                          RETURN_MM_LONG(2);
                  }
          } while(0);
  
  }
  RETURN_MM_LONG(1);

  }