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Facing a 'Deprecated' error after upgrade PHP version from 7.4 to 8.18

Here is what I've got after the upgrade:

Deprecated: Return type of net\authorize\api\contract\v1\CreditCardSimpleType::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in D:\PHP\webroot\myproject\vendor\authorizenet\authorizenet\lib\net\authorize\api\contract\v1\CreditCardSimpleType.php on line 70

Here is a partial of the composer.json

 "require": {
        "php": ">=8.1",
        "authorizenet/authorizenet": "2.0.2",
}

Since I couldn't downgrade my PHP version, what should I do? any suggestions would be appreciated.

Jackzhao
Member
4 REPLIES 4

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Zooksmore220
Member

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DebbieLVenab
Member
Try clearing composer cache, dump-autoload. May have to delete lock file and run run update and or composer global update. You shouldn't have to downgrade its not a fatal..dealt with this issue several times it can be a pain
mgagme
Member

Thanks for the help! I've already tried clearing cache but didn't dump autoload files. after deleting the vendor folder and composer.lock file and run composer update to get everything back, it seems the issue is still in there.

Like you said, it's not a fatal error, just a' deprecated' warning, it's very easy to fix it by adding ^ E_DEPRECATED into error_reporting(), just want to see if there is another way to fix this.