Please read my posted issue here: #13518

We should not use the abandoned vendor package 'zoujingli/wechat-php-sdk'!

Please undo this merge, and ask the wechatpay developer to update the payment extension, to use the recommended 'zoujingli/wechat-developer'. In the meantime we should remove this payment extension altogether.

Also, we need to make sure it supports all of the PHP versions 7.4 up to 8.3!

Having further tested it, it appears the old vendor package zoujingli/wechat-php-sdk doesn't support PHP 8.0 or later, it uses the deprecated PHP libxml_disable_entity_loader (see https://www.php.net/manual/en/function.libxml-disable-entity-loader.php).

If we keep the webchat_pay in there, then the least we should do is to restrict it to PHP versions < 8.0, which can be easily implemented in the catalog/model/extension/payment/wechat_pay.php and the admin/controller/extension/payment/wechat_pay.php .

Anyway, Daniel has now also asked his staff to contact the authors of wechat_pay, to see whether they can update it.

libxml_disable_entity_loader is only deprecated, and will likely continue to work until 9.0.

if oc treats it as a critical error you can supress it eith @