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• How to center a Paypal button in IE8

  - by Barry

  On one of my pages, http://artistsatlaketahoe.com/abstract.html , the Paypal buttons appear centered beneath text in FireFox and Chrome, but not in IE8. I got the centering to work in FF and Chrome by adding the following within the Paypal code snippet relating the Add to Cart image: style="display: block; margin: 0 auto;" Unfortunately, it isn't working in IE8. Any suggestions? Thanks!!

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• Not getting the value of session variable on paypal transaction processing in php

  - by hwd

  hi, i cant get the value of session variable on paypal transaction processing.when transation complete my table is updated, for updation i use a session variable,at that time i can't get the value of the session variable. is sessions not get in paypal? please help me to find a solution......

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• PayPal recurring payments in .net

  - by jiwan

  Hi Every One, I'm thinking about making a subscription system. The samples on the website I found to be difficult to follow because they are separated classes for very specific issues. From what I understand (if I'm not wrong) the PayPal Recurring is the best choice for subscription system. However I hope that you can help me to find a complete sample about PayPal Recurring using .NET.

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• eBay Leads Mobile Commerce

  - by David Dorf

  For the first time, more smartphones where shipped than PCs. This important milestone helps reinforce that retailers need a strong mobile commerce strategy. IDC reported that for the 4th quarter of 2010, manufacturers shipped 100.9 million devices versus 92.1 million PCs shipped. One early adopter for the retail industry is eBay, the popular online auction and shopping site. In July 2008 they released their first mobile app and have increased investments ever since. In 2002 they bought PayPal for use with its online channel, but its becoming a force in the mobile world as well. In June 2010 they acquired RedLaser, the popular barcode scanning mobile app. Both pieces of technology enhance the mobile experience, and are available to other retailers as well. More recently, in December 2010 they acquired Critical Path Software, the developer of their eBay, StubHub, and Shopping.com mobile applications. Taking their mobile development in-house was a clear signal that mobile commerce is important to their strategy. Pop on over the eBay Inc's mobile commerce stats page to see just how well they are doing. You can use the animated map to see where people are using the app on any given day, and you can compare sales of the different categories. eBay's hottest category is Cars & Trucks, garnering 16.5% of the total $2B (yes, billion) in mobile sales in 2010. To understand why that category is so large, let's look at the top 10 most expensive cars sold on eBay mobile in 2010: $240,001 Mercedes-Benz: SLR McLaren $209,888 Lamborghini: Gallardo $208,500 Ferrari: 430 $199,900 Lamborghini: Gallardo $189,000 Lamborghini: Murcielago $185,000 Ferrari: 430 $175,000 Porsche: 911 $170,000 Ferrari: 550 $160,000 Bentley: Continental, GT $159,900 Lamborghini: Gallardo eBay claims they sell 3-4 Ferraris on their mobile app each month. Yes, mobile commerce is not limited to small items. While I would wait to get home and fire up the PC, the current generation that has grown up with mobile phones has no issue satisfying their impulses. Dave Sikora of Digby told me he's seen people buy furniture sets, mattresses, and diamonds via their mobile phones. I guess mobile commerce is rapidly becoming the norm.

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• Small, fast shopping cart setup

  - by R..

  I'm looking for an open source shopping cart solution that's simple and easy to setup. The requirements are: Quick setup for someone familiar with *nix webservers. Checkout via PayPal (other payment methods not needed). Customers should not have to create an account to make a purchase. At least a minimal level of inventory control. Ability to print/export a list of orders in compact form. Any recommendations for something I should try? Ability to get it up and working quickly is really my priority right now; if it's not ideal, it can be replaced (or, as I'm looking for open source, I can adapt it to fit the requirements better) at a later time. Edit: Really what I'm looking for is simplicity. This will be for a small local business, and the orders will consist of 1-10 items that are being delivered by a driver who needs a simple list of what each customer received when making delivery. Looking like a giant online computer/electronics/etc. store is definitely not a desirable quality. The simpler the interface presented to customers (who are used to purchasing through dumb web forms and paying COD), the better.

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• How to pay your users? (alternatives to PayPal)

  - by Sosh

  Hi, I would like to know what best non-paypal options are for paying users of your website (for services rendered for instance). How are others doing this at the moment? If you could mention specific services providers that would be most useful. This would have to work internationally, not be limited to one country. Thank you Update (in response to comments) Reason for excluding PayPal: I've had bad experiences with them in the past. Amounts: Well, i don't mean micropayments of a few cents, but could be anything from 40EUR - 500 EUR. Currency: I didn't mention this, but I would be paying in Euros.

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• Security header is not valid - using curl php

  - by toni

  Hi all, Im implementing the Express Checkout, Paypal API using PHP. I have no problem with the first step:SetExpressCheckout. I a have awk=success. But in method GetExpressCheckout I get "Security header is not valid". I try to figure out the problem and i think found out maybe it was the curl not working well.. What i did i copy the whole URL: https://api-3t.sandbox.paypal.com/nvp?USER=sanbox_1276609583_biz_api1.gmail.com&PWD=1276609589&SIGNATURE=AYVosblmD7khKkvvb.bNxvFT0OQ2A8GopwByEuC.CfMHt65VaUmvAEy-&VERSION=62.0&token=EC-3YG18670X88588437&METHOD=GetExpressCheckoutDetails and paste it to the browser. This will result to: TOKEN=EC%2d3YG18670X88588437&CHECKOUTSTATUS=PaymentActionNotInitiated&TIMESTAMP=2010%2d06%2d16T07%3a40%3a12Z&CORRELATIONID=e1a1e469bf066&ACK=Success&VERSION=62%2e0&BUILD=1356926... But when that url executed in the function I made it will not work. Below is my function: function mycurl($url,$querystr){ $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_VERBOSE, 1); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $querystr); curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); $response = curl_exec($ch); curl_close ($ch); return $response; } I hope somebody can help on this. thanks so much. Note: - I Used the sandbox for this. I created a sandbox account, I have a Business account to represent a merchant, and a Personal account to represent a buyer. And I used this: endpoint url: api-3t.sandbox.paypal.com/nvp sandbox url: www.sandbox.paypal.com/cgi-bin/webscr This should not be the issue.

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• slow DNS resolution

  - by Ehsan

  I have a DNS server that resolves all queries for an internal group of servers. It is a bind on CentOS 5.5 (same as RHEL5) and I have set it up to allow recursion and resolve direction without any forwarders. The problem I am facing is that it takes a freakishly long amount of time to resolve a name for the first time. (in the magnitudes of 20 sec) This causes clients to give timeout. When I set it to forward all to Google's public DNS, i.e. 8.8.8.8+8.8.4.4, it works very nicely (within a second). I tried monitoring the traffic on the net to see why it is doing this: [root@ns1 ~]# tcpdump -nnvvvA -s0 udp tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes 23:06:36.137797 IP (tos 0x0, ttl 64, id 35903, offset 0, flags [none], proto: UDP (17), length: 60) 172.17.1.10.36942 > 172.17.1.4.53: [udp sum ok] 19773+ A? www.paypal.com. (32) E..<[email protected]... .....N.5.(6.M=...........www.paypal.com..... 23:06:36.140594 IP (tos 0x0, ttl 64, id 56477, offset 0, flags [none], proto: UDP (17), length: 71) 172.17.1.4.6128 > 192.35.51.30.53: [udp sum ok] 10105 [1au] A? www.paypal.com. ar: . OPT UDPsize=4096 (43) E..G....@........#3....5.3fR'y...........www.paypal.com.......)........ 23:06:38.149756 IP (tos 0x0, ttl 64, id 13078, offset 0, flags [none], proto: UDP (17), length: 71) 172.17.1.4.52425 > 192.54.112.30.53: [udp sum ok] 54892 [1au] A? www.paypal.com. ar: . OPT UDPsize=4096 (43) [email protected]&.....6p....5.3.q.l...........www.paypal.com.......)........ 23:06:40.159725 IP (tos 0x0, ttl 64, id 43016, offset 0, flags [none], proto: UDP (17), length: 71) 172.17.1.4.24059 > 192.42.93.30.53: [udp sum ok] 11205 [1au] A? www.paypal.com. ar: . OPT UDPsize=4096 (43) E..G....@..@.....*].]..5.3..+............www.paypal.com.......)........ 23:06:41.141403 IP (tos 0x0, ttl 64, id 35904, offset 0, flags [none], proto: UDP (17), length: 60) 172.17.1.10.36942 > 172.17.1.4.53: [udp sum ok] 19773+ A? www.paypal.com. (32) E..<.@..@..@... .....N.5.(6.M=...........www.paypal.com..... 23:06:42.169652 IP (tos 0x0, ttl 64, id 44001, offset 0, flags [none], proto: UDP (17), length: 60) 172.17.1.4.9141 > 192.55.83.30.53: [udp sum ok] 1184 A? www.paypal.com. (32) E..<[email protected].#..5.(...............www.paypal.com..... 23:06:42.207295 IP (tos 0x0, ttl 54, id 38004, offset 0, flags [none], proto: UDP (17), length: 205) 192.55.83.30.53 > 172.17.1.4.9141: [udp sum ok] 1184- q: A? www.paypal.com. 0/3/3 ns: paypal.com. NS ns1.isc-sns.net., paypal.com. NS ns2.isc-sns.com., paypal.com. NS ns3.isc-sns.info. ar: ns1.isc-sns.net. AAAA 2001:470:1a::1, ns1.isc-sns.net. A 72.52.71.1, ns2.isc-sns.com. A 38.103.2.1 (177) E....t..6./A.7S......5#..................www.paypal.com..................ns1.isc-sns.net..............ns2.isc-sns...............ns3.isc-sns.info..,.......... ..p.............,..........H4G..I..........&g.. (this goes on for a few more seconds) If you look carefully, you will see that the first 3-4 root servers did not respond at all. This wastes 7-8 seconds, until one of them responded. Do you think I have setup something wrong here? Interestingly, when I dig directly from the root servers that did not respond, the always respond very fast (showing the firewall/nat is not the issue here). E.g. dig www.paypal.com @192.35.51.30 works perfectly, consistently, and very fast. What do you think about this mystery?

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• Is it possible to use JavaScript inside handlebars.js template

  - by Gleeb

  The description says it all. How to put a JavaScript script inside handlebars template. I want to make a dynamic Paypal button for my website. <script type="text/x-mustache-template" id="product-item-thumbnail-template"> <h2>{{title}}</h2> <p>{{message}}</p> <p><a class="btn" href="#">View details &raquo;</a></p> <p><script src="resources/js-frameworks/[email protected]" data-button="buynow" data-name="My product" data-amount="1.00"></script></p> </script> But this produces an error because of the tag. it closes the template script and not the paypal script Thanks

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• Java WebApp - Integrate a Payment method system

  - by spike07

  I've a java webApp where people can sell their items like in ebay. I need to integrate a payment system and I'm wondering what's the best (from a customer point of view) and easiest to integrate in my app. I was thinking to integrate paypal and require all the sellers to have an account on it. Maybe Google Checkout can be a good option as well, but I don't know if it's used a lot. I think I'll redirect the user to Paypal and then remove the item once I receive the confirmation from paypal that the item has been payed. Would you suggest another easier to integrate/more trusted solution? Thank you

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• IOS Paypal Phonegap Plugin errors

  - by Paul

  I'm trying to implement the Paypal Plugin for Phonegap (Iphone) - (https://github.com/phonegap/phonegap-plugins/tree/master/iPhone/PayPalPlugin). I've followed all the instructions but I get thefollowing error on build from the SAIOSPaypalPlugin.h file - Lexical or Preprocessor issue - PGPlugin.h not found I'm using latest Cordova version freshly downloaded from Phonegap site just weeks ago, so I'm not sure whats missing?

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• PayPal for Indian Rupees(INR) any solution

  - by ahammed

  I am developing online shopping website, In shopping website all product are priced in Indian Rupees(INR). I am going to integrate My shopping cart to paypal payment gateway. I knew that pay pal does not support INR. So i have to convert INR to USD. Is there Any API service to convert INR to USD as automatically ?, If yes, give the details about that.

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• Possible payment status values

  - by pokrate

  Hi ! I am working on a website to sell PDF's online, where user can get the download link by email after paying through paypal. What could be the possible paypal payment status values for the above scenario ? I can only think of Complete & InComplete. Do using Processing makes sense here ?

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• Retrieve Records from paypal csv file

  - by Pankaj Khurana

  Hi, I want to retrieve all the records from paypal csv file where type='Payment Processed' and store it in a database table.It should be available in the following format: 'Heading':'Value' The format of the csv is: "Transaction ID","Reference Transaction ID","Date","Type","Subject","Item Number","Item Name","Invoice ID","Name","Email","Shipping Name","Shipping Address Line 1","Shipping Address Line 2","Shipping Address City","Shipping State/Province","Shipping Zip/Postal Code","Shipping Address Country","Shipping Method","Address Status","Contact Phone Number","Gross Amount","Receipt ID","Custom Field","Option 1 Name","Option 1 Value","Option 2 Name","Option 2 Value","Note","Auction Site","Auction User ID","Item URL","Auction Closing Date","Insurance Amount","Currency","Fees","Net Amount","Shipping & Handling Amount","Sales Tax Amount","To Email","Time","Time Zone" "1T","",5/5/2010 2:10:44 PM,"Payment Processed","CFP Self Study Kit","1","CFP Self Study Kit","","User1","[email protected]","","","","","","","","","N","","68.18","R1","","","","","","","","","",,"","USD","-2.62","65.56","0","0","[email protected]","01:40","Asia/Calcutta" "2T","",5/19/2010 4:04:08 PM,"Payment Processed","CFP Self Study Kit","1","CFP Self Study Kit","","User2","[email protected]","","","","","","","","","N","","68.18","R2","","","","","","","","","",,"","USD","-2.62","65.56","0","0","[email protected]","03:34","Asia/Calcutta" "3T","1RT",5/19/2010 5:28:45 PM,"Currency Conversion Completed","","","",""," ","","","","","","","","","","N","","17492.6","","","","","","","","","","",,"","INR","0","17492.6","0","0","","04:58","Asia/Calcutta" "4T","2RT",5/19/2010 5:28:45 PM,"Currency Conversion Completed","","","",""," ","","","","","","","","","","N","","-393.36","","","","","","","","","","",,"","USD","0","-393.36","0","0","","04:58","Asia/Calcutta" "5T","",5/19/2010 5:28:45 PM,"Transfer to Bank Initiated","P1006","","P1006",""," ","","","","","","","","","","N","","-17492.6","","","","","","","","","","",,"","INR","0","-17492.6","0","0","","04:58","Asia/Calcutta" "6T","",5/20/2010 5:38:02 PM,"Transfer to Bank Completed","P1006","","P1006",""," ","","","","","","","","","","N","","-17492.6","","","","","","","","","","",,"","INR","0","-17492.6","0","0","","05:08","Asia/Calcutta" "7T","",5/21/2010 12:32:37 PM,"Payment Processed","FP - LVC Plus","","FP - LVC Plus","","User3","[email protected]","User3","NEW DELHI","BEHIND KARNATAKA BANK LD","SOUTH","NEW DELHI","110023","IN","","N","","283.96","","","","","","","","","","",,"","USD","-9.95","274.01","0","0","[email protected]","00:02","Asia/Calcutta" "8T","",5/25/2010 4:40:48 PM,"Transfer to Bank Initiated","P1006","","P1006",""," ","","","","","","","","","","N","","-12569.85","","","","","","","","","","",,"","INR","0","-12569.85","0","0","","04:10","Asia/Calcutta" "9T","3RT",5/25/2010 4:40:48 PM,"Currency Conversion Completed","","","",""," ","","","","","","","","","","N","","-274.01","","","","","","","","","","",,"","USD","0","-274.01","0","0","","04:10","Asia/Calcutta" "10T","4RT",5/25/2010 4:40:48 PM,"Currency Conversion Completed","","","",""," ","","","","","","","","","","N","","12569.85","","","","","","","","","","",,"","INR","0","12569.85","0","0","","04:10","Asia/Calcutta" "11T","",5/26/2010 4:57:39 PM,"Transfer to Bank Completed","P1006","","P1006",""," ","","","","","","","","","","N","","-12569.85","","","","","","","","","","",,"","INR","0","-12569.85","0","0","","04:27","Asia/Calcutta" "Total","-247.05 USD","-15.19","-262.24" "Total","0.00 INR","0.00","0.00" Please help me on this Thanks

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• activemerchant PayPalExpress transaction is invalid

  - by Ameya Savale

  I am trying to integrate activemerchant into my ruby on rails application. This is my controller where I get the purchase attirbutes and create a PaypalExpressResponse object def checkout total_as_cents, purchase_params = get_setup_params(Schedule.find(params[:schedule]), request) setup_response = @gateway.setup_purchase(total_as_cents, purchase_params) redirect_to @gateway.redirect_url_for(setup_response.token) end @gateway is my PaypalExpressGateway object which I create using this method in my controller def assign_gateway @gateway = PaypalExpressGateway.new( :login => api_user, :password => api_pass, :signature => api_signature ) end I got the api_user, api_pass, and api_signature values from my developer.paypal.com account, when I logged in for the first time there was already a sandbox user created as a merchant which is where I got the api credentials from. And finally here is my get_setup_params method: def get_setup_params(schedule, request) purchase_params = { :ip => request.remote_ip, :return_url => url_for(:action => 'review', :only_path => false, :sched => schedule.id), :cancel_return_url => register_path, :allow_note => true, :item => schedule.id } return to_cents(schedule.fee), purchase_params end How ever when I click on the checkout button, I get redirected to a sandbox paypal page saying "This transaction is invalid. Please return to the recipient's website to complete your transaction using their regular checkout flow." I'm not sure exactly what's wrong, I think the problem lies in the credentials but don't know why. Any help will be appreciated. One other point, I'm running this in my development environment so I have put this in my config file config.after_initialize do ActiveMerchant::Billing::Base.mode = :test end UPDATE Found out what the problem was, my return cancel url was invalid instead of using register_path, I used url_for(action: "action-name", :only_path => false) this answer helped me Rails ActiveMerchant - Paypal Express Checkout Error even though I wasn't able to see the output of the response like the person has managed to do

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• how do redirect values to other page without click event in html. Below code is fine IE. But Not in

  - by karthik

  I have implemented paypal in my web page. Process is 'given inputs are redirect to other page(2 nd page) which have to get that input and redirect to paypal page(third page). Here we submit data on first page. value pass to second page(in this page user interaction not allowed) after pass to third page.It works fine in IE . But Not In Mozila.Send any Solution. Code sample(second page): <%string product = Request.QueryString["productName"].ToString();% <% string amount = Request.QueryString["price"].ToString(); % " " document.all.frmpaypal.submit(); Fine in IE, Not In Mozila

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• PHP: How to check for response code?

  - by Tom

  Hi, I'm a relative PHP newbie implementing a PayPal IPN listener and all seems to be working fine, except I dont really know how to check for a response code. I've tried something ugly with cURL but it doesn't work at all (I'm not understanding cURL). I've tried this piece of code that I grabbed from somewhere on the net: $fp = fsockopen('ssl://www.sandbox.paypal.com', 443, $errno, $errstr, 30); $response_headers = get_headers($fp); $response_code = (int)substr($headers[0], 9, 3); ... but it's not working (returns $response_code = 0). So right now, I'm debugging my IPN code without checking for a Response 200. Can anyone more experienced advise me on what's the proper/simple way to check this? Thanks

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• Les plateformes de développement d'eBay et de PayPal fusionnent, les deux communautés de développeurs vont-elles bien s'entendre ?

  Les plateformes de développement d'eBay et de PayPal fusionnent, les deux communautés de développeurs vont-elles bien s'entendre ? PayPal et eBay viennent d'annoncer qu'ils vont fusionner leurs programmes de développement. La plateforme unifiée ainsi crée permettra aux développeurs externes de réaliser des applications d'e-commerce et de paiement, pour de nombreux appareils. Le but de la manoeuvre : ouvrir la porte à une "nouvelle expérience commerciale" où les ventes sont poussées par les innovations digitales, pour répondre aux exigences de "moyens de paiement intégrés disponibles en continu et n'importe où", de la part des consommateurs. La scission entre les équipes de développement des deux e...

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• Private domain purchase with paypal: how to prevent fraud?

  - by whamsicore

  I am finally going to buy a domain I have been looking at. The domain owner wants me to give him my Godaddy account information and send him the payment via Paypal gift, so that there will be no extra charges. Should this cause suspicion? Does Paypal offer any kind of fraud protection? What is the best way to protect myself from fraud in this situation, without the need for escrow services, such as escrow.com? Any advice welcomed. Thanks.

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• Windows 8 : PayPal publie une API pour le paiement in-app, sortie d'une flopée d'applications dont Dropbox, Twitter, ESPN

  Windows 8 : PayPal publie une API pour le paiement in-app sortie d'une flopée d'applications dont Dropbox, Twitter, ESPN PayPal vient de sortir son API pour Windows 8. L'interface de programmation de la société permettra aux développeurs d'intégrer des moyens de paiement dans leurs applications Windows 8. Parmi les différents modes de monétisation dont supporte l'API, on va noter la présence du paiement in-app qui a été mis en avant par Microsoft. Cette option permettra aux développeurs de facturer des mises à jour, des fonctionnalités additionnelles ou encore les contenus d'une application. À titre d'exemple, Microsoft cite le jeu Crowdstar "Fish wit...

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• php multidimensional array as name value pair

  - by Ayad Mfs

  For ecommerce, that expected name value pair I have the following approved code: function create_example_purchase() { set_credentials(); $purchase = array( 'name' => 'Digital Good Purchase Example', 'description' => 'Example Digital Good Purchase', 'amount' => '12.00', // sum of all item_amount 'items' => array( array( // First item 'item_name' => 'First item name', 'item_description' => 'a description of the 1st item', 'item_amount' => '6.00', 'item_tax' => '0.00', 'item_quantity' => 1, 'item_number' => 'XF100', ), array( // Second item 'item_name' => 'Second Item', 'item_description' => 'a description of the 2nd item', 'item_amount' => '3.00', 'item_tax' => '0.00', 'item_quantity' => 2, 'item_number' => 'XJ100', ), ) ); return new Purchase( $purchase); } I would like to get $items Array inside associative $purchase array dynamically from shipping cart. Is there a way to generate exactly the same output above? My dirty solution, to write $purchase array as string inclusive the generated $items array in a file and include it later in the called script. Help appreciated.

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• PHP Shopping Cart Script - When to empty cart?

  - by john

  Im working on a shopping cart script in php and need some advice on how to handle the final process. Once the customer has entered items into the cart, chosen shipping option, and then clicked the checkout button, they are then redirected to a paypal button which is dynamically generated using BMCreateButton. My question is, when is the best time to empty the customers cart? I have set up the auto return feature on paypal, which i was goin to use to then empty the cart, but its not very good as customers have to click a link in order to redirect. So should i empty it when they click the checkout button just before the dynamic button? I can also use these setting in php to prevent cach back button issues // Date in the past header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Always modified header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // HTTP/1.1 header("Cache-Control: no-store, no-cache, must-revalidate"); header("Cache-Control: post-check=0, pre-check=0", false); // HTTP/1.0 header("Pragma: no-cache"); What would to guys recommend? cheers.

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• using paypals html api is safe?

  - by ajsie

  im trying out paypals html api where you specify price, item_name, customer information and so on in the html: <form action="https://www.paypal.com/cgi-bin/webscr" method="post" id="payPalForm"> <input type="hidden" name="cmd" value="_cart" /> <input type="hidden" name="upload" value="1" /> <input type="hidden" name="no_note" value="1" /> <input type="hidden" name="business" value="[email protected]" /> <input type="hidden" name="currency_code" value="SEK" /> <input type="hidden" name="return" value="http://freelanceswitch.com/payment-complete/" /> <input type="hidden" name="tax_rate" value="25" /> <input type="hidden" name="item_name_1" value="Apple Macpro" /> <input type="hidden" name="item_number_1" value="01 - Product 1" /> <input type="hidden" name="amount_1" value="25000" /> <input type="hidden" name="item_name_2" value="Apple Macbook" /> <input type="hidden" name="item_number_2" value="02 - Product 2" /> <input type="hidden" name="amount_2" value="12500" /> <input type="hidden" name="item_name_3" value="Apple Macbook Air" /> <input type="hidden" name="item_number_3" value="03 - Product 3" /> <input type="hidden" name="amount_3" value="12500" /> <input type="submit" name="Submit" value="Submit" /> </form> when the user clicks submit it takes him/her to paypals payment page. but doesn't this mean that a hacker could change the order by manipulating the html code? i can´t figure out how paypal prevents this security problem.

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• Edit Settings in web.config

  - by Scott Selby

  I didn't know how to title this question - I am making a request to PayPal's Express Payment API. I am using their dll that helps make the request and parse the response. The instructions for their code to work is to add you authorization credentials in the web.config file. I have done so. My problem is that I want to be able to edit these credentials that are being set dynamically ( probably get from SQL ) because we are going to allow different users to enter their API credentials. Sending the request to PayPal looks like this Dim wrapper As New SetExpressCheckoutReq() wrapper.SetExpressCheckoutRequest = request Dim service As New PayPalAPIInterfaceServiceService() Dim setECResponse As SetExpressCheckoutResponseType = service.SetExpressCheckout(wrapper) There's not much room in there to edit the header of the request , because PayPalAPIInterfaceServiceService() is defined in their dll and applies its own header based on the credentials in the web.config. So, my question is , is there a way to point in the web.config to another location when it looks in web.config? I'm not to sure this is possible , also is there any way to edit the header of a request that is defined in a dll without changing the dll (to stay pci compliant) The line in the web.config is here: <account apiUsername="****" apiPassword="****" apiSignature="****"/>

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• IPN delivery failed. HTTP error code 403: Forbidden

  - by ramdaz

  I am trying to test IPN. Working with django-paypal. What could be wrong. The URL is working. No errors otherwise... But when I test this, it says IPN delivery failed and error code is 403,

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