how can I sync the database of SMF and Joomla?

I have a Joomla and SMF forum.., I want to sync the data.., when the a user from joomla will register, automatically, it is also register in the SMF forum..,

tnx for the replies.,

Solution

There is an SMF/Joomla bridge - http://extensions.joomla.org/extensions/communication/forum-bridges/11442

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