Template linking and transclusion check

Checks and reports which articles that transcludes a template that are not linked from the template, and which articles that are linked from a template but do not transclude it.

.wikipedia.org
(including namespace)

Warning: mysqli::__construct(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /data/project/templatetransclusioncheck/public_html/dependencies/database.php on line 41

Warning: mysqli::__construct(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: Name or service not known in /data/project/templatetransclusioncheck/public_html/dependencies/database.php on line 41
Caught an exception: Database server login failed. This is probably a temporary problem with the server and will be fixed soon. The server returned error code 2002.