gform_after_submission does not fire after form is submitted - wordpress

Question

I have tested my custom function, which works correctly on it's own when the form id and entry id are provided. But it never seems to fire when a form is submitted.
I am using the action add_action( 'gform_after_submission_14', 'after_submission', 10, 2 );
My form id is 14.
How can I troubleshoot this or correct the issue?
My code is:
add_action( 'gform_after_submission_14', 'after_submission', 10, 2 );
function after_submission($entry, $form){
global $wpdb;
include $_SERVER['DOCUMENT_ROOT'] . '/custom_config.php';
$data = RGFormsModel::get_lead($entry);
$eid = $data['id'];
$user_id = $data['created_by'];
$hotel = $data['33'];
$flight = $data['39'];
$car = $data['38'];
$parking = $data['37'];
$entertainment = $data['36'];
$other = $data['35'];
if($hotel!=''):
mysqli_query($link,"INSERT INTO reimbursements ( user_id, eid, amount, type ) VALUES ( '$user_id', '$eid', '$hotel', 'hotel' )");
print_r($link);
endif;
if($flight!=''):
mysqli_query($link,"INSERT INTO reimbursements ( user_id, eid, amount, type ) VALUES ( '$user_id', '$eid', '$flight', 'flight' )");
endif;
if($car!=''):
mysqli_query($link,"INSERT INTO reimbursements ( user_id, eid, amount, type ) VALUES ( '$user_id', '$eid', '$car', 'car' )");
endif;
if($parking!=''):
mysqli_query($link,"INSERT INTO reimbursements ( user_id, eid, amount, type ) VALUES ( '$user_id', '$eid', '$parking', 'parking' )");
endif;
if($entertainment!=''):
mysqli_query($link,"INSERT INTO reimbursements ( user_id, eid, amount, type ) VALUES ( '$user_id', '$eid', '$entertainment', 'entertainment' )");
endif;
if($other!=''):
mysqli_query($link,"INSERT INTO reimbursements ( user_id, eid, amount, type ) VALUES ( '$user_id', '$eid', '$other', 'other' )");
endif;
mysqli_close($link);
}

Answer 1

The problem was here:
$data = RGFormsModel::get_lead($entry);
$entry is already an array that is in use.
So rather than define them again as I did:
$eid = $data['id'];
I should have used:
$eid = $entry['id'];
The bigger part of this solution was figuring out the ability to troubleshoot it.
For that, I did the following:
Add GFCommon::log_debug( __METHOD__ . '(): running.' ); to the top of the function.
Enable logging as explained here (https://docs.gravityforms.com/logging-and-debugging/#enabling-logging)
View the error log of 'Gravity Forms Core' at 'Forms->Settings->Logging' This requires that 'logging' is check marked at the time the test is run.