I couldn't find a report about this: I tried to install a test Moodle site on my WAMP-box, and the installation hangs. After the path selection the server gives a "server could not be reached" error. I narrowed this down to the string manager fetching component strings: if no strings are returned then the page loaded, but with the string array returned to get_strings() the site hangs. It took me quite a while to find out how the strings are loaded, but even after this the error didn't make much sense.
With PHP 7.0 the installation went through fine, so this might be an issue with PHP 7.2.6. Just a heads up.