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PubMed Posts Not working on CentOS Platform

I was working on Fetching Publications from PubMedCentral into a WordPress Application using the plugin

It worked like a champ on the Local Machine but when I uploaded it on the Hosting server running the CentOS platform it wouldn’t work. After debugging, I found php-xml (php dom extension) was not installed on the Hosting server.

To install it, run the command sudo yum install php-xml
and restart the service using command sudo service httpd restart

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