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PayPal IPN Buttons HELP

I have been using PayPal IPN for ages, but with "BuyNow" buttons. I have recently created new buttons that are "Shopping Cart" buttons, and now my IPN doesn't work anymore.

Here is my current code:

if (empty($_POST) || @count($_POST) < 1)
		die("No params");
 
	$query = array('cmd=_notify-validate');
	foreach ($_POST as $key => $val) {
		if (!empty($val))	{
			$query[] = $key .'=' .urlencode($val);
			$$key    = trim(strip_tags($val));
		}
	}
	$query = implode('&', $query);
 
	$has_curl = false;
	if (function_exists('curl_init') && $ch = curl_init()) {
		curl_setopt($ch, CURLOPT_URL, 'http://www.paypal.com/cgi-bin/webscr');
		curl_setopt($ch, CURLOPT_TIMEOUT, 30);
		curl_setopt($ch, CURLOPT_POST, true);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $query);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
		curl_setopt($ch, CURLOPT_USERAGENT, 'Codehead + Curl');
		$result = curl_exec($ch);
		curl_close($ch);
		$has_curl = true;
	}
	if (!$has_curl) {
		$header  = "POST /cgi-bin/webscr HTTP/1.0\r\n";
		$header .= "Host: www.paypal.com\r\n";
		$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
		$header .= "Content-Length: " . strlen($query) . "\r\n\r\n";
		if ($fp = fsockopen(www.paypal.com, 80, $errno, $errstr, 30)) {
			socket_set_timeout($fp, 15);
			fwrite($fp, $header . $query);
			while (!feof($fp)) {
				$result = fgets($fp, 1024);
				if (strcmp($result, 'VERIFIED') == 0)
					break;
			}
			fclose($fp);
		}
	}
	
		$paypal = array();
		$paypal['user_id'] = $user_id;
		$paypal['payment_date'] = time();
		$paypal['completed_date'] = ($payment_status == 'Completed' ? time() : '');
		$paypal['item_name'] = $item_name;
		$paypal['item_number1'] = $item_number; //&item_number=TP_S1
		$paypal['payment_type'] = $payment_type;
		$paypal['payment_status'] = $payment_status;
		$paypal['pending_reason'] = $pending_reason;
		$paypal['payment_amount'] = $mc_gross;
		$paypal['paypal_fee'] = (isset($mc_fee) ? $mc_fee : 0);
		$paypal['payment_currency'] = $mc_currency;
		$paypal['txn_id'] = $txn_id; 
		$paypal['receiver_email'] = $receiver_email;
		$paypal['payer_name'] = $first_name .' ' .$last_name;
		$paypal['payer_email'] = $payer_email;		
		$paypal['raw_payment_data'] = serialize($_POST);
		$paypal['custom'] = $custom;

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The item_number used to be just item_number with buynow buttons, but with shopping cart it seems to have numbers (like item_number1).
However I have script email me parameters received, and item_number1 shows as blank, even if its listen in IPN message in PayPal history.

Bellow are samples of IPN messages from PayPal history. First its regular buynow:

mc_gross=18.00&protection_eligibility=Ineligible&address_status=confirmed&payer_id=BH6KD672XT7QN&tax=0.00&address_street=484 w 43rd st. 14m&payment_date=22:40:24 Oct 03, 2011 PDT&payment_status=Completed&charset=windows-1252&address_zip=10036&first_name=Jesse&mc_fee=0.96&address_country_code=US&address_name=Jesse McBride&notify_version=3.4&custom=CUSTOM&payer_status=verified&business=&address_country=United States&address_city=&verify_sign=A8AwgDwQw-W3A-XKrA3Y-EaqmjTpO2P3K09PZnl9DCymW&payer_email=&txn_id=9U496046E6211010U&payment_type=instant&btn_id=24843740&last_name=&address_state=NY&receiver_email=fdhfdfsdf&payment_fee=&shipping_discount=0.00&insurance_amount=0.00&receiver_id=dsfsdfsdfds&txn_type=web_accept&item_name=dfdasfd&discount=0.00&mc_currency=EUR&item_number=ITEM&residence_country=US&shipping_method=Default&handling_amount=0.00&transaction_subject=CUSTOM&payment_gross=&shipping=0.00&ipn_track_id=RNjnly6gChPh-8fJdt7ZdA

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Now second is Cart Buynow IPN:

mc_gross=18.00&protection_eligibility=Ineligible&address_status=unconfirmed&item_number1=TP_C5000&payer_id=924ZZYRK93BXN&tax=0.00&address_street=Glärnischstrasse 79&payment_date=12:38:05 Oct 04, 2011 PDT&payment_status=Completed&charset=windows-1252&address_zip=8810&mc_shipping=0.00&mc_handling=0.00&first_name=Pius&mc_fee=1.14&address_country_code=CH&address_name=&notify_version=3.4&custom=rasorfrog&payer_status=verified&business=mm&address_country=Switzerland&num_cart_items=1&mc_handling1=0.00&address_city=n&verify_sign=AeC0pIlHDmjsk5A-GAqvtzxGq8K--9UJCyoRzE1FjQrjW&payer_email=&mc_shipping1=0.00&btn_id1=36427581&txn_id=4MF91487RR2074513&payment_type=instant&last_name=&address_state=&item_name1=ITEM Credits&receiver_email=om&payment_fee=&quantity1=1&receiver_id=6696NT7T9DDHW&txn_type=cart&mc_gross_1=18.00&mc_currency=EUR&residence_country=CH&transaction_subject=CUSTOM&payment_gross=&ipn_track_id=7rCDhJ8.x4tOthO2eXKTpg

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So what I need is a way to EXTRACT item_numberX and its quantity and than run foreach loop (loop must run for each quantity & for each item_number).

Please help me out, its really important. Thanks a lot.

GVNPublic123

ASKER

Ok, stupid me. Its late and Im wasted, its actually variables are created from POST so $item_number is the holder of value and not $paypal['item_number'].

The problem however still exists, how do I get all item numbers and than like array run foreach. Like detect all item_numberx's and quantities of them ordered and than run a loop like foreach($item_number_array as $item_number){for($i=0,$i<$quantity,$i++){/*APPLY PRODUCT*/}}

GVNPublic123

ASKER

Maybe I can do something like this, like construct 100 variables for items and quanitities.

for($i=0; $i<100; $i++){
$item_number = ${'item_number'.$i};
for($j=0; $j<100; $j++){
$quantity = ${'quantity'.$j};
//NOW USING $item_number and $quantity perform check of their value and send products if they match
}}

My stoned and tired brain cant think of anything else, so if this post is completely retarded please dont laugh your asses of.

ASKER CERTIFIED SOLUTION

Ray Paseur

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GVNPublic123

ASKER

Ray_Paseur thats is a BEAUTIFUL code. Thanks Ill use it tomorrow... now Im off to bed.

Ray Paseur

Thanks for the points and for your kind words. I hope it still looks good to you in the morning ;-)

GVNPublic123

ASKER

Oh yes its good. But I have a problem with it, for some reason it doesn't want to work with item_numbers.
I placed test order having 2 different item's so there are item_number1 and item_number2 in IPN message. But for some reason, cart only processes item_number1. The while loop there doesnt work for me.