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This page documents the PUT_DATA_IN_URL configuration setting in FormMail.

PUT_DATA_IN_URL is an OPTIONAL setting, which means...

OPTIONAL

you can change this setting if you need to, but the default value is fine for most circumstances.

Controls data transmission to bad_url.

Set PUT_DATA_IN_URL to false if you want to prevent FormMail from placing data in the URL when redirecting to bad_url.

The default value is "true" and will work fine for forms with a small amount of data (less than 2000 bytes, approximately.)

However, URLs have a finite length which is dependent on the user's browser. If you've got forms with large amounts of data, then a redirect to bad_url will probably cause an error display to the user, for example: Cannot find server or DNS Error

By setting PUT_DATA_IN_URL to false, you avoid this problem.

In any case, error information and the data submitted in the form will be placed in PHP session variables.

So, if your bad_url target is written in PHP and your PHP version is sufficient to handle sessions correctly, you'll be fine with PUT_DATA_IN_URL set to false. (As always, test thoroughly!)

Otherwise, you'll need to keep PUT_DATA_IN_URL set to true and your forms will need to be small.

define("PUT_DATA_IN_URL",true);

define("PUT_DATA_IN_URL",false);

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