Pass $headers $email

[ChetUbetcha]

How do I pass a variable into an email header? I had it set up with an email address, such as

$headers .= 'From: [e-mail]';

But now I want to be able to run a query for the person that’s logged in and get the result, such as

$email = $row_user[‘email’];

And then want to do something along the lines of

$headers .= 'From: $email';

I’ve tried all sorts of combinations, but can’t seem to get it to work.

[devinemke]

$headers .= 'From: ' . $row_user['email'];