Big crisis. Admin page not displayed. Not possible to buy.

[randers]

Email from the internet provider today stating that:

PHP 8.0 is no longer supported by PHP.
Your web hosting now automatically upgraded to PHP 8.2.
If you experience problems, e.g. in the form of "blank" front page, "MySQL" error or a "server error", check the documentation for your software and see our info on PHP 8 here.
If necessary, try downgrading to PHP 8.1. Please note that PHP 8.1 is only supported until November 2024.

Have downgraded to PHP 8.1

We have had to temporarily close the online shop due to error messages and the fact that it is not possible to buy products.

The following error messages are displayed on the front page and when you click on purchase, items are not added to the shopping basket.

Deprecated: Return type of database_core::query($sql, $resultmode = MYSQLI_STORE_RESULT) should either be compatible with mysqli::query(string $query, int $result_mode = MYSQLI_STORE_RESULT): mysqli_result|bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.1/database_core.php on line 61

Deprecated: Return type of Href::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.5/href.php on line 139

Warning: session_name(): Session name cannot be changed after headers have already been sent in /home/6/a/antrade/www/shop/includes/system/segments/application/start_session.php on line 13

Deprecated: Return type of mysql_session::open($save_path, $session_name) should either be compatible with SessionHandler::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 27

Deprecated: Return type of mysql_session::close() should either be compatible with SessionHandler::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 15

Deprecated: Return type of mysql_session::read($key) should either be compatible with SessionHandler::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 31

Deprecated: Return type of mysql_session::write($key, $value) should either be compatible with SessionHandler::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 47

Deprecated: Return type of mysql_session::destroy($key) should either be compatible with SessionHandler::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 19

Deprecated: Return type of mysql_session::gc($maxlifetime) should either be compatible with SessionHandler::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 23

Deprecated: Return type of mysql_session::validateId($key) should either be compatible with SessionUpdateTimestampHandlerInterface::validateId(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 42

Deprecated: Return type of mysql_session::updateTimestamp($key, $ignore) should either be compatible with SessionUpdateTimestampHandlerInterface::updateTimestamp(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 38

Warning: session_set_save_handler(): Session save handler cannot be changed after headers have already been sent in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/session.php on line 103

Warning: session_set_cookie_params(): Session cookie parameters cannot be changed after headers have already been sent in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.7.7/cookie.php on line 60

Warning: session_start(): Session cannot be started after headers have already been sent in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/session.php on line 55



The admin page does not open. Shows only error messages:

Deprecated: Return type of database_core::query($sql, $resultmode = MYSQLI_STORE_RESULT) should either be compatible with mysqli::query(string $query, int $result_mode = MYSQLI_STORE_RESULT): mysqli_result|bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.1/database_core.php on line 61

Deprecated: Return type of Href::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.5/href.php on line 139

Warning: session_name(): Session name cannot be changed after headers have already been sent in /home/6/a/antrade/www/shop/butikkoppsett/includes/application_top.php on line 74

Deprecated: Return type of mysql_session::open($save_path, $session_name) should either be compatible with SessionHandler::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 27

Deprecated: Return type of mysql_session::close() should either be compatible with SessionHandler::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 15

Deprecated: Return type of mysql_session::read($key) should either be compatible with SessionHandler::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 31

Deprecated: Return type of mysql_session::write($key, $value) should either be compatible with SessionHandler::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 47

Deprecated: Return type of mysql_session::destroy($key) should either be compatible with SessionHandler::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 19

Deprecated: Return type of mysql_session::gc($maxlifetime) should either be compatible with SessionHandler::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 23

Deprecated: Return type of mysql_session::validateId($key) should either be compatible with SessionUpdateTimestampHandlerInterface::validateId(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 42

Deprecated: Return type of mysql_session::updateTimestamp($key, $ignore) should either be compatible with SessionUpdateTimestampHandlerInterface::updateTimestamp(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/mysql_session.php on line 38

Warning: session_set_save_handler(): Session save handler cannot be changed after headers have already been sent in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/session.php on line 103

Warning: session_set_cookie_params(): Session cookie parameters cannot be changed after headers have already been sent in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.7.7/cookie.php on line 60

Warning: session_start(): Session cannot be started after headers have already been sent in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.3/session.php on line 55

Warning: Cannot modify header information - headers already sent by (output started at /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.1/database_core.php:0) in /home/6/a/antrade/www/shop/includes/system/versioned/1.0.8.5/href.php on line 168

Does anyone know what needs to be done for the online store to work again?

[burt]

You don't say what version Phoenix.

[ecartz]

In the configure.php files, change error_reporting to E_ALL^E_DEPRECATED

Also, set display_errors to false (0).

[burt]

In any case;

https://github.com/CE-PhoenixCart/Phoen ... b4f00562fc
&
https://github.com/CE-PhoenixCart/Phoen ... ef937b1c02

will certainly help you.

[randers]

Sorry, it is 1.0.8.16, but it is the same with plain installation of 1.0.8.20 and 1.0.8.21

[randers]

In the configure.php files, change error_reporting to E_ALL^E_DEPRECATED

Also, set display_errors to false (0).

Thank you very much.
It saved the day and lifted a huge worry off my shoulders.