title: How to use command line parameters with phing
body: <p>Is it possible with phing to implements some Task depending on command line?</p>
  
  <p>Ex:</p>
  
  <p>phing install tag=1.0 dest=/tmp/1.0</p>
  
  <p>I actually only see 3 ways to do it</p>
  
  <ul>
  <li>phing install -Dtag=1.0 -Ddest=/tmp/1.0   </li>
  <li>using a prompt (there is something like a PromptTask)</li>
  <li>implementing my task and playing with $argv (global)</li>
  </ul>
  
  <p>When calling a phing target from command line, are the other command line arguments useless ?</p>