循环通过$ POST使$ SESSION等效

Question

Would this be the correct way to loop through the $POST data sent by an API and have a equivalent $SESSION name/value pair be created from it?

foreach($_POST as $key=>$value)
{ $_SESSION['$key']=$value; }

UPDATE: First, thanks for the solid responses - I think I need to explain the problem I'm trying to overcome and why this functionality is being considered. The $_POST response is coming from a payment processor gateway - the problem is that since the payment form/processing is not on our domain the results of the payment (approved/declined etc. etc.) is being RELAYED to our server via $POST - When our PHP code tries to process the response data it looks for various PHP structures (Like php include 'file.php') under there domain instead of ours and errors out - I need to move the $POST data into a session and then move the person back to our domain so that the file/directory/resource tree is correct. Does this make sense what im encountering?

Answer 1

Don't use single quotes:

foreach ($_POST as $key => $value) {
  $_SESSION[$key] = $value;
}

I'd encourage you to read about Strings in PHP.

Note: This is potentially unsafe for several reasons - mostly injection by key collision. Consider if I posted the logged in user id.

This could be mitigated through encapsulation:

$_SESSION['posted_data'] = $_POST;