function drupal_session_start in Memcache Storage 7

Forcefully starts a session, preserving already set session data.

3 calls to drupal_session_start()

drupal_session_commit in includes/session.inc

Commits the current session, if necessary.

drupal_session_initialize in includes/session.inc

Initializes the session handler, starting a session if needed.

drupal_session_regenerate in includes/session.inc

Called when an anonymous user becomes authenticated or vice-versa.

File

includes/session.inc, line 269

User session handling functions.

Code

function drupal_session_start() {

  // Command line clients do not support cookies nor sessions.
  if (!drupal_session_started() && !drupal_is_cli()) {

    // Save current session data before starting it, as PHP will destroy it.
    $session_data = isset($_SESSION) ? $_SESSION : NULL;
    session_start();
    drupal_session_started(TRUE);

    // Restore session data.
    if (!empty($session_data)) {
      $_SESSION += $session_data;
    }
  }
}