title: Install old PHP version on Ubuntu
body: <p>I have got an <code>Ubuntu14.04</code> and a <code>PHP 5.5.9</code> installed.<br>
  Now I need <code>PHP 5.4.*</code><br></p>
  
  <p>As I have seen, it is not possible to downgrade it.<br>
  I have to purge it and then install the old version.<br></p>
  
  <p>I have searched everywhere but I can't find an instruction how to get an old PHP version which works.<br></p>
  
  <p>I already tried to get it with <code>apt-get install php5=version</code>, but <code>apt-cache policy php5</code> does always only show <code>PHP 5.5.9</code><br>
  And also <br>
  <code>wget php5.4....</code><br>
  <code>./configure</code><br>
  make<br>
  make install<br>
  doesn't work.<br></p>
  
  <p>What is the solution for my problem?</p>