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
此扩展默认为启用，编译时可通过下列选项禁用： --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