How do I know I am in checkout page? (PHP)

[EvanGR]

We're having some weird browser caching issues in the checkout page.

I want to add a NO-CACHE meta in the header for that page.

How would I detect that in PHP with an if statement?

Also, we're using a 3rd party checkout (OPC), does that make a difference?

Thanks

[pinochico]

do you tryied httacess?

[PRO]

$jinput = JFactory::getApplication()->input;
$view = $jinput->get('view', '0');
  if ($view=='cart' ){
echo 'HELLO';
}


which OPC?    make sure its working right first