This is a modification of campaign_monitor for use with http://salesforce.com. It adds a generic lead to SalesForce using data from a FoxyCart order. It uses fopen as opposed to curl because curl does not seem to like more than four characters after a period in the file name.

FoxyCart + SalesForce

<?php
/**
 * RC4Crypt 3.2
 *
 * RC4Crypt is a petite library that allows you to use RC4
 * encryption easily in PHP. It's OO and can produce outputs
 * in binary and hex.
 *
 * (C) Copyright 2006 Mukul Sabharwal [http://mjsabby.com]
 *     All Rights Reserved
 *
 * @link http://rc4crypt.devhome.org
 * @author Mukul Sabharwal <mjsabby@gmail.com>
 * @version $Id: class.rc4crypt.php,v 3.2 2006/03/10 05:47:24 mukul Exp $
 * @copyright Copyright &copy; 2006 Mukul Sabharwal
 * @license http://www.gnu.org/copyleft/gpl.html
 * @package RC4Crypt
 */
 
/**
 * RC4 Class
 * @package RC4Crypt
 */
class rc4crypt {
	/**
	 * The symmetric encryption function
	 *
	 * @param string $pwd Key to encrypt with (can be binary of hex)
	 * @param string $data Content to be encrypted
	 * @param bool $ispwdHex Key passed is in hexadecimal or not
	 * @access public
	 * @return string
	 */
	function encrypt ($pwd, $data, $ispwdHex = 0)
	{
		if ($ispwdHex)
			$pwd = @pack('H*', $pwd); // valid input, please!
 
		$key[] = '';
		$box[] = '';
		$cipher = '';
 
		$pwd_length = strlen($pwd);
		$data_length = strlen($data);
 
		for ($i = 0; $i < 256; $i++)
		{
			$key[$i] = ord($pwd[$i % $pwd_length]);
			$box[$i] = $i;
		}
		for ($j = $i = 0; $i < 256; $i++)
		{
			$j = ($j + $box[$i] + $key[$i]) % 256;
			$tmp = $box[$i];
			$box[$i] = $box[$j];
			$box[$j] = $tmp;
		}
		for ($a = $j = $i = 0; $i < $data_length; $i++)
		{
			$a = ($a + 1) % 256;
			$j = ($j + $box[$a]) % 256;
			$tmp = $box[$a];
			$box[$a] = $box[$j];
			$box[$j] = $tmp;
			$k = $box[(($box[$a] + $box[$j]) % 256)];
			$cipher .= chr(ord($data[$i]) ^ $k);
		}
		return $cipher;
	}
	/**
	 * Decryption, recall encryption
	 *
	 * @param string $pwd Key to decrypt with (can be binary of hex)
	 * @param string $data Content to be decrypted
	 * @param bool $ispwdHex Key passed is in hexadecimal or not
	 * @access public
	 * @return string
	 */
	function decrypt ($pwd, $data, $ispwdHex = 0)
	{
		return rc4crypt::encrypt($pwd, $data, $ispwdHex);
	}
}
 
// Foxy Stuff
$DataFeedKey = 'XXXXXXX'; // your foxy cart datafeed key
//SalesForce Stuff
$sfga = 'XXXXXXX'; //SalesForce Google Ads key
$oid = 'XXXXXXXX'; //SalesForce Key
$lead_source = 'Web Order'; // lead source e.g. Web Info Request
$custom = ''; //any custom options/inputs
//$inputs = array('customer_first_name','customer_last_name','customer_email','customer_address1','customeraddress2'); -- possible automation of setting data for future
 
 
if (isset($_POST["FoxyData"])) {
	$FoxyData_encrypted = urldecode($_POST["FoxyData"]);
	$FoxyData_decrypted = rc4crypt::decrypt($DataFeedKey,$FoxyData_encrypted);
	$FoxyDataArray = new SimpleXMLElement($FoxyData_decrypted);
	foreach($FoxyDataArray->transactions->transaction AS $transaction) {
		$company_name = "";
		$shipping_address = "";
		$customer_first_name = $transaction->customer_first_name;
		$customer_last_name = $transaction->customer_last_name;
		$customer_email = $transaction->customer_email;
 
		//billing address
		$customer_address1 = $transaction->customer_address1;
		$customer_address2 = $transaction->customer_address2;
		$customer_city = $transaction->customer_city;
		$customer_state = $transaction->customer_state;
		$customer_postal_code = $transaction->customer_postal_code;
		$customer_country = $transaction->customer_country;
		$customer_phone = $transaction->customer_phone;
		if(!empty($customer_address2)){
			$customer_address1 .= " " . $customer_address2; //%0D%0A
		}
		$billing_address = "&street=" .$customer_address1 .  "&city=" . $customer_city . "&state=" . $customer_state . "&zip=" . $customer_postal_code . "&country=" . $customer_country;
 
		//shipping address
		$shipping_address1 = $transaction->shipping_address1;
		$shipping_address2 = $transaction->shipping_address2;
		$shipping_city = $transaction->shipping_city;
		$shipping_state = $transaction->shipping_state;
		$shipping_postal_code = $transaction->shipping_postal_code;
		$shipping_country = $transaction->shipping_country;
		$shipping_phone = $transaction->shipping_phone;
		if(!empty($shipping_address2)){
			$shipping_address1 .= "%0D%0A" . $shipping_address2;
		}
		if(!empty($shipping_address1)){
			$shipping_address = $shipping_address1 .  "%0D%0A" . $shipping_city . ", " . $shipping_state . " " . $shipping_postal_code . "%0D%0A" . $shipping_country . "%0D%0A" . $shipping_phone;
		}
		// got some custom stuff in the details or the options? - use this
 
		foreach($transaction->custom_fields->custom_field AS $custom_field) {
 			if($custom_field->custom_field_name == "company_name"){
 				$company_name = $custom_field->custom_field_value;
 			}
		}
 
		/**/
		// ok, now we have our data, let's shake hands with the nice folks at SALES FORCE WOO PARTY ALL THE TIME!
 
		//form the url
		$url = "http://www.salesforce.com/servlet/servlet.WebToLead?"
			. "encoding=UTF-8" . "&sfga=" . $sfga  . "&lead_source=" . $lead_source . "&oid=" . $oid 
			. "&email=" . $customer_email . "&first_name=" . $customer_first_name . "&last_name=" . $customer_last_name . "&company=" . $company_name 
			. $billing_address . "&phone=" . $customer_phone . "&description=" . $shipping_address . $custom;
 
		$url = str_replace(array(' ','\n','\r'),'+',$url);
		$fp = fopen($url,"r");
	}
	if (!$fp) {
		// Something didnt work right, return an error
		// This ensures that the transactions will still show up on the next datafeed. 
		print "error";
	} else {
		// we're good. Mark it fed.
		print "foxy";
		fclose($fp);
	}
} else {
	// Something didnt work right, return an error
	// This ensures that the transactions will still show up on the next datafeed. 
	print "error";
}
?>