Preserve $_POST variables through different pages like $_SESSION

Once some data 开发者_如何学编程are submitted through POST, is it possible to make them available as $_POST through different pages, same like how $_SESSION allows us to do?

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You'll need to parse the data in $_POST and recreate it in your form. You can do it with hidden fields.

Or, you can save the $_POST data in a user session and refer to it when you need it. You'll have to manage the lifecycle of the data to make sure it doesn't stay around too long.

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Digging up an old question today. But i forgot to post the working solution I dug....

Place this snippet in top of your every page

if(isset($_POST) & count($_POST)) { $_SESSION['post'] = $_POST; }
if(isset($_SESSION['post']) && count($_SESSION['post'])) { $_POST = $_SESSION['post']; }

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The problem is that you are sending the data in via the URL which is stored in the $_GET variable, not in $_POST. If you want the ability to submit the data in either format, use $_REQUEST instead.

There is a bit of a debate on whether it is a good idea to use $_REQUEST, but if you are doing a simple site, there is little wrong with it.

If you would rather not use $_REQUEST, then you can use the following code on each variable you are expecting:

if (!empty($_GET['foo'])) {
    $foo = $_GET['foo'];
} elseif (!empty($_POST['foo'])) {
    $foo = $_POST['foo'];
} else {
    die("Foo not submitted");
}