// contoh kode PHP untuk menampilkan pesan error saat loading web
$error_message = "Maaf, terjadi kesalahan saat loading web.";

// jika terjadi error
if (isset($_GET['error'])) {
  $error_code = $_GET['error'];
  switch ($error_code) {
    case 404:
      $error_message = "Halaman tidak ditemukan.";
      break;
    case 500:
      $error_message = "Terjadi kesalahan internal server.";
      break;
    default:
      $error_message = "Terjadi kesalahan tidak diketahui.";
  }
}

// menampilkan pesan error
echo "<h1>Error</h1>";
echo "<p>$error_message</p>";<br />
<b>Warning</b>:  Use of undefined constant DEFAULT_TIMEZONE - assumed 'DEFAULT_TIMEZONE' (this will throw an Error in a future version of PHP) in <b>/home/indoasi5/iapauthentic.indoasiacompanies.com/index.php</b> on line <b>23</b><br />
<br />
<b>Warning</b>:  Use of undefined constant DEFAULT_TIMEZONE - assumed 'DEFAULT_TIMEZONE' (this will throw an Error in a future version of PHP) in <b>/home/indoasi5/iapauthentic.indoasiacompanies.com/index.php</b> on line <b>24</b><br />
<br />
<b>Notice</b>:  date_default_timezone_set(): Timezone ID 'DEFAULT_TIMEZONE' is invalid in <b>/home/indoasi5/iapauthentic.indoasiacompanies.com/index.php</b> on line <b>24</b><br />
<br />
<b>Warning</b>:  Use of undefined constant HELPERS_DIR - assumed 'HELPERS_DIR' (this will throw an Error in a future version of PHP) in <b>/home/indoasi5/iapauthentic.indoasiacompanies.com/index.php</b> on line <b>82</b><br />
<br />
<b>Warning</b>:  require(HELPERS_DIRFunctions.php): failed to open stream: No such file or directory in <b>/home/indoasi5/iapauthentic.indoasiacompanies.com/index.php</b> on line <b>82</b><br />
<br />
<b>Warning</b>:  require(HELPERS_DIRFunctions.php): failed to open stream: No such file or directory in <b>/home/indoasi5/iapauthentic.indoasiacompanies.com/index.php</b> on line <b>82</b><br />
<br />
<b>Fatal error</b>:  require(): Failed opening required 'HELPERS_DIRFunctions.php' (include_path='.:/opt/alt/php74/usr/share/pear') in <b>/home/indoasi5/iapauthentic.indoasiacompanies.com/index.php</b> on line <b>82</b><br />