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Running Ubuntu 19.10 with MediaWiki 1.31.1 installed. I have a wiki that worked well under Ubuntu 19.04 but says MediaWiki 1.31 internal error

Installing some PHP extensions is required. Required components

You are missing a required extension to PHP that MediaWiki requires to run. Please install:

xml (more information)

though xml is loaded for PHP 7.3. But for 7.2 which also is installed xml is not loaded. I guess that MediaWiki uses 7.2. How can I determine the version used? And if it is the wrong, how is it changed?

Tommy Pollák
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1 Answers1

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To get what version used, create and open in browser php file with this content 

<? phpinfo();

To install xml for 7.2:

sudo apt-get install php7.2-xml
LeonidMew
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