Mara_2 -4 Newbie Poster

I need to create a database from the messages, coming from the Mobirise website builder's forms. What code should I use?
This doesn't work. Could you please help me.

$link = mysqli_connect('localhost', 'root', 'password'); 
if (!$link) 
  $output = 'Unable to connect to the database server.'; 
  include 'output.html.php'; 
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