ericjuden

This plugin allows you to use $_COOKIE, $_SERVER, $_SESSION, $_GET, $_POST and $_REQUEST data in a Gravity Form through the merge tags of a field. I’ve only really tested this using a hidden field.

Gravity Forms Extended Merge Tags

It's amazing how few people seem to know about this plugin. Incredibly simple, but also really helpful when using $_SESSION variables to track website visitors.
I use it to get referring website data, so I can easily store it in a $__SESSION variable. Then when the visitor fills out a Gravity Form, I can pass along the stored vars.
I crafted a Lead Source Tracking for Salesforce script that uses this plugin to pass along the details to Salesforce when a form is submitted.



Brilliantly simple

This plugin allows you to use $_COOKIE, $_SERVER, $_SESSION, $_GET, $_POST and $_REQUEST data in a Gravity Form through the merge tags of a field.

Eric Mann

Adds <code>$_SESSION</code> functionality to WordPress, leveraging the database where needed to power multi-server installations.
Every visitor, logged in or not, will be issued a session. Session data will be stored in the WordPress database by default 
to deal with load balancing issues if multiple application servers are being used. In addition, the session collection will 
also be stored in memory for rapid use within WordPress.
Session data stored in the database can be encrypted at rest for better security.

WP Session Manager

Amazing!

good

I am using WP Session Manager in several projects since some years. Initially, I was looking for a more reliable session management compared to standard PHP sessions – and found it in WP Session Manager. Thanks for this great plugin!

Very useful and reliable

Good code quality, very useful when you need the joy of sessions :) Keep it up.

Gravity Forms Extended Merge Tags vs WP Session Manager