title: ssh command fail but work on server Fabric
body: <p>I'm trying to retrieve the PHP version on the remote server with fabric, but when I execute my command in fabric it returns me : /bin/bash: php: command not found.</p>
  
  <p>When I connect via ssh on the server then try <code>php -v</code> it returns me the php version. but when I try <code>ssh user@host 'php -v'</code> I have the same error than fabric ( /bin/bash: php: command not found)</p>
  
  <p>I think my problem comes from the environment variable right?  Is there a way to load the proper env variable so my command doesn't fail in fabric?</p>