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Populate a hidden field in Gravity Forms before submission
<?php
/* gform_pre_submission will do all forms. gform_pre_submission_1 will do a form with an ID of 1
* Keep an eye on the priority of the filter. In this case I used 9 because the Salesforce plugin we used ran a presubmission filter at 10 so we needed this to happen before it
*/
add_filter( "gform_pre_submission_1", "add_salesforce_campaign_id_footer", 9 );
function add_salesforce_campaign_id_footer( $form ){
foreach($form["fields"] as &$field)
if($field["id"] == 2){
/* Set the variable you want here - in some cases you might need a switch based on the page ID.
* $page_id = get_the_ID();
*/
$campaign_id = '701200000004SuO';
/* Do a View Source on the page with the Gravity Form and look for the name="" for the field you want */
$_POST["input_2"] = $campaign_id;
}
return $form;
}
?>
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