App Service updating PHP to latest versions

In the next release of the Web Apps feature of Azure App Service in May 2019, we'll update the PHP stacks to the latest available versions. For information on the changes in the new versions, see the change logs on the PHP website. | PHP version | Change log | | ----------- | ------------------------------------------------------------------------- | | 5.6.40 | <https://www.php.net/ChangeLog-5.php#5.6.40> | | 7.0.33 | <https://www.php.net/ChangeLog-7.php#7.0.33> | | 7.1.27 | <https://www.php.net/ChangeLog-7.php#7.1.27> | | 7.2.16 | [https://www.php.net/ChangeLog-7.php#7.2.16](https://www.php.net/#7.2.16) | * Services