We have shifted our website from php to Joomla but it's creating dynamic URLs and google indexing them.
Our website is currently reachable via all of these URLs:
Why is this happening?
Check this one at first .The article is what you need. https://joomlaseo.com/checklist/avoid-duplicate-url-s
Also i would recommend SH404SEF. SH404SEF is probably the best known full SEO extension for Joomla. It will help you a lot