Gravity Forms Dynamic Population is a feature of the Gravity Forms WordPress plugin that allows you to dynamically populate a form field with a value from the URL, a cookie, or a post field. This can be useful for pre-filling a form with data that is already known, or for creating a customized form experience based on information stored in the URL or a cookie.
To use the Gravity Forms Dynamic Population feature, you will need to install and turn on the Gravity Forms plugin on your WordPress site. Then, you can use the gform_field_value_ filter hook to dynamically populate a form field with a value. This can be done in the functions.php file of your WordPress theme, or in a custom plugin.
For example, to populate a form field with the value of a query parameter in the URL, you could use the following code:
add_filter( 'gform_field_value_myfield', 'populate_myfield' );
function populate_myfield( $value ) {
return isset( $_GET['myfield'] ) ? esc_attr( $_GET['myfield'] ) : $value;
}
This code will check for a myfield query parameter in the URL, and if it is present, it will use its value to populate the form field with the same name. If the query parameter is not present, the default value of the field will be used.
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