class DB {
    private static $conn;

    public static function connect() {
        if (!self::$conn) {
            $cfg = require __DIR__.'/../config/database.php';
            self::$conn = new PDO(
              "mysql:host={$cfg['host']};dbname={$cfg['db']}",
              $cfg['user'],
              $cfg['pass'],
              [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]
            );
        }
        return self::$conn;
    }
}
class Guard {

  public static function auth() {
    if (!isset($_SESSION['user'])) {
        header('Location: /login.php'); exit;
    }
  }

  public static function role(array $roles) {
    if (!in_array($_SESSION['user']['role'], $roles)) {
        http_response_code(403); exit('Forbidden');
    }
  }

  public static function branch($branchId) {
    if ($_SESSION['user']['role'] !== 'SUPER_ADMIN'
        && $_SESSION['user']['branch_id'] != $branchId) {
        exit('Branch Isolation Violation');
    }
  }
}
class Audit {
  public static function log($action, $entity, $entityId) {
    $db = DB::connect();
    $db->prepare("
      INSERT INTO audit_trail
      (user_id, branch_id, action, entity_type, entity_id, ip_address, user_agent)
      VALUES (?,?,?,?,?,?,?)
    ")->execute([
      $_SESSION['user']['id'] ?? null,
      $_SESSION['user']['branch_id'] ?? null,
      $action,
      $entity,
      $entityId,
      $_SERVER['REMOTE_ADDR'],
      $_SERVER['HTTP_USER_AGENT']
    ]);
  }
}
<br />
<font size='1'><table class='xdebug-error xe-uncaught-exception' dir='ltr' border='1' cellspacing='0' cellpadding='1'>
<tr><th align='left' bgcolor='#f57900' colspan="5"><span style='background-color: #cc0000; color: #fce94f; font-size: x-large;'>( ! )</span> Fatal error: Uncaught Error: Class "Guard" not found in E:\Program_Files\wamp64\www\cctv\19.12.25\reports\evidence_handover_receipt.php on line <i>7</i></th></tr>
<tr><th align='left' bgcolor='#f57900' colspan="5"><span style='background-color: #cc0000; color: #fce94f; font-size: x-large;'>( ! )</span> Error: Class "Guard" not found in E:\Program_Files\wamp64\www\cctv\19.12.25\reports\evidence_handover_receipt.php on line <i>7</i></th></tr>
<tr><th align='left' bgcolor='#e9b96e' colspan='5'>Call Stack</th></tr>
<tr><th align='center' bgcolor='#eeeeec'>#</th><th align='left' bgcolor='#eeeeec'>Time</th><th align='left' bgcolor='#eeeeec'>Memory</th><th align='left' bgcolor='#eeeeec'>Function</th><th align='left' bgcolor='#eeeeec'>Location</th></tr>
<tr><td bgcolor='#eeeeec' align='center'>1</td><td bgcolor='#eeeeec' align='center'>0.0041</td><td bgcolor='#eeeeec' align='right'>400296</td><td bgcolor='#eeeeec'>{main}(  )</td><td title='E:\Program_Files\wamp64\www\cctv\19.12.25\reports\evidence_handover_receipt.php' bgcolor='#eeeeec'>...\evidence_handover_receipt.php<b>:</b>0</td></tr>
</table></font>