title: Upgrade php 5.5.* to php 5.6.* using apt-get
body: <p>I installed a new local server, when I installed php5 package with <code>apt-get install php5</code> it got the version 5.6.</p>
  
  <p>My production server is still with php 5.5 and I would like to upgrade it to php 5.6 like in my dev environment.</p>
  
  <p>Can I do it easily using apt-get ? tell to apt-get to switch to the branch 5.6 ?</p>
  
  <p>Thx</p>