Gravity Forms – php code to check multiple fields

Hi –

I’m using Gravity Forms and need to change this example:

<?php
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add_filter("gform_pre_submission_filter", "add_bcc");
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function add_bcc($form){
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    //creating list of emails based on fields on the form
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    $bcc  = $_POST["input_9"] . ","; //player 1 email
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    $bcc .= $_POST["input_11"] . ","; //player 2 email
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    $bcc .= $_POST["input_13"] . ","; //player 3 email
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    $bcc .= $_POST["input_15"] . ","; //player 4 email
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    $bcc .= $_POST["input_17"]; //player 5 email
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    //setting notification BCC field to the list of fields
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    $form["notification"]["bcc"] = $bcc;
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    //returning modified form object
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    return $form;
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}
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?>

into one that will check whether three radio buttons are set to YES and if so send a specific notification content, but if one of the three radio buttons is set to NO then a different notification content is used.

Can anyone help?