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If I write the following code:
session_start();
$_SESSION['user_id']='daniel';
the variable stays fine as long as I’m on the page on which it was created, and the second I try to call $_SESSION['user_id'] from another page, I don’t get a response.
Can anyone tell me what mistake I’m making?
You should be using
session_start()on every page you want to use sessions on.