To upgrade your Azure App Service PHP version to the latest minor version 8.3.8, you can run the following command in the Cloud Shell:
az webapp config set --resource-group <resource-group-name> --name <app-name> --php-version 8.3.8
This will set the PHP version to 8.3.8 for your app service. It is recommended to always use the latest version of PHP to ensure that your application is secure and up-to-date.
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