In my server, when I run this line:
$dom = new DOMDocument;
It throws:
[Tue Jul 10 21:57:21.446136 2018] [:error] [pid 32011] [client 167.99.34.190:27323] PHP Warning: require_once(DOMDocument.php): failed to open stream: No such file or$
[Tue Jul 10 21:57:21.446181 2018] [:error] [pid 32011] [client 167.99.34.190:27323] PHP Fatal error: require_once(): Failed opening required 'DOMDocument.php' (includ$
Which means I have to install php-xml module.
I'm doing it using this command:
sudo apt-get install php-xml
And then:
sudo service apache2 restart
But still the result of echo "XML: ", extension_loaded('xml') ? 'OK' : 'MISSING'; is MISSING. Why? And how can I install it?
I resolved the problem by specifying the exact php version in the command:
sudo apt-get install php7.0-xml
sudo service apache2 restart