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tunhien

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How can server side understand an AJAX request is sent from whom!

As I asked above if I have a site alow user login and can be login multi user on a computer (it's mean that don't use cookie) and when I send request to server site file "respond.php" if I'm a loged in user then respond the text: "You're login!" if not respond "Sorry! you have to login before!"

Thanks for your read and waiting for your guide!
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Brian Bush
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