| private static isValidSessionID ( string $session_id ) : boolean | ||
| $session_id | string | The session ID we should validate. |
| return | boolean | True if this session ID is valid, false otherwise. |
private static function isValidSessionID($session_id)
{
if (!is_string($session_id)) {
return false;
}
if (strlen($session_id) != 32) {
return false;
}
if (preg_match('/[^0-9a-f]/', $session_id)) {
return false;
}
return true;
}