Can I restore a PHP SESSION by its ID?

Im uploading files with the uploadify plugin. the PHP SESSION is lost durin开发者_StackOverflow中文版g upload, is there a way to restore the session? Perhaps by its id?

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Yes. You need to add an option to uploadify:

$('#upload').uploadify({
    'scriptData':{'session_name':"<?php echo session_id(); ?>"}
});

And you need to add this to your PHP:

<?php
session_id($_POST['session_name']);
session_start();
?>

Then everything will be as expected.