<?php

add_filter('gform_pre_submission_filter_12', 'custom_redirect_url');
function custom_redirect_url($form){

    //$condition = RGForms::post('input_3');
	$condition = RGForms::post('input_7');

    if(!$condition)
	    return $form;

	$form['confirmation']['type'] = 'redirect';
	switch($condition){
	    case 'pdf2image':
	        $form['confirmation']['url'] = 'http://www.visual-integrity.com/downloads/current-pdf2image.exe';
	        break;
	    case 'pdf2picture':
	        $form['confirmation']['url'] = 'http://www.visual-integrity.com/downloads/current-pdf2picture.exe';
	        break;
	    case 'pdf2cad':
	        $form['confirmation']['url'] = 'http://www.visual-integrity.com/downloads/current-pdf2cad.exe';
	        break;
	    case 'pdf2cadMac':
	        $form['confirmation']['url'] = 'http://www.visual-integrity.com/downloads/pdf2cad_ext.pkg';
	        break;
	    case 'PDFFLY':
	        $form['confirmation']['url'] = 'http://www.visual-integrity.com/downloads/current-pdffly.exe';
	        break;
	    case 'METAFLY':
	        $form['confirmation']['url'] = 'http://www.visual-integrity.com/downloads/current-metafly.exe';
	        break;
	}

    return $form;
}

function print_rr($array) {
    echo '<pre>';
    print_r($array);
    echo '</pre>';
}

?>