This XML module is not provided on a default php (v7) install on Debian GNU/Linux stretch (9.3)
Add it with: sudo apt-get install php-xml
This extension is enabled by default. It may be disabled by using the following option at compile time: --disable-simplexml
This XML module is not provided on a default php (v7) install on Debian GNU/Linux stretch (9.3)
Add it with: sudo apt-get install php-xml