Comment 6 for bug 1621463

There's no bug. The upstream PHP module is named php7_module, but the package is named php7.0. You can have more php7_module providers - libapache2-mod-php7.0 | libapache2-mod-php7.1 and in future libapache2-mod-php7.2, but only one php7_module can be enable at the same time (related to internal apache2 module structures). Filling bug with Debian would be futile, as I would only close it with the same explanation as here.