title: PHP Activity log
body: <p>So, I have a web app based on PHP and a DB based on MySQL.
  The app registers employees <code>(table name: colaboradores)</code> and items <code>(Table name: ativos)</code> (like computers and stuff like that) and then on the app it has the <code>users</code> table (that basically is for permissions like create and delete records).</p>
  
  <p>The point is, I want every action performed by any user to be registered on a log file (I was thinking on creating a new table on the BD called <code>log</code> maybe? ) and show a text field on the page of every item that is register all the life's cycle of that item (For exemple, register on the <code>log</code> that the user mike added an Iphone to the employee Sam today).
  Any tips of how can I do that?</p>