I'm developing a website with PHP and MySQL. How can I make it so that if you click the Paypal button and pay successfully it will change a string in the database from "Personal" to "Professional"?
Assuming you're talking about PayPal Website Payments Standard (if you're not paying a monthly fee, you are), then you need to use Instant Payment Notification. You can either enable it account-wide from the profile tab of your account, or per payment button/link by setting the notify_url parameter.
PayPal will send an HTTP POST to your notify URL when a payment is completed. Your script at that URL should verify that the POST is authentic, then update the appropriate row in the database now that you know it's paid for.
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I am not sure what this is called but here is what i am looking to do.
I am trying to make a php script that will create a link between our store account and paypal buyer, so that when they click our buy button it will process the payment without any future confirmations or user actions.
I have tried the paypal sdks and integration wizard no luck, Does anyone know of a working example of what i am trying to do?
Billing agreement(also called Reference Transactions) allows customer to agree the payment once on your website or app, then you call an API with the billing agreement ID to tell PayPal to charge the customer. Please see document here . You will need to contact PayPal to enable you to use Billing agreement, it's not easy to get approval:(
Integrating Paypal buttons are pretty straightforward.
Go to your merchant account.
Go to your Create Paypal Button page.
Choose whatever the button types you want. Configure it with Price etc.
Now just copy and paste the code generated.
It just works.
P.S
There is an option in your merchant account page to set the returning address from Paypal. You can set a returning page and catch all the transaction details via HTTP Post method when it is called by Paypal.
There is this Sandbox account type in Paypal which you can do a lot of playing with.
My sent data to paypal is
"https://www.paypal.com/cgi-bin/webscr/cmd=_cart&upload=1&business=seller.email#something.com¤cy_code=USD&bn=BusinessName&return=http://www.sellersite.com&item_number_1=55&item_name_1=battery&amount_1=55&quantity_1=2&item_number_2=52&item_name_2=bat&amount_2=5&quantity_2=3"
And I want to show those sent data(item number, item name,amount,quantity) and the paypal transaction id to the buyer on "http://www.sellersite.com" after successful payment. (Suppose, the seller has the merchant account with paypal and he would enter that paypal id into database from admin section of the website. So,I would not think about his paypal account settings, my job is just to create the environment for paypal payment for the seller.)
If I write a script like
$T_ID=$_REQUEST['tx']; // or $T_ID=$_GET['tx']; **ref(tx):- "https://cms.paypal.com/us/cgi-bin/?cmd=_render-content&content_ID=developer/howto_html_paymentdatatransfer"
$item=$_REQUEST['item_number_1']; // or $item=$_GET['item_number_1'];
Then would I get those data from paypal ?
Please tell me.
-Thanks.
It's not going to be quite that simple. You'll need to setup Payment Data Transfer (PDT) in order to get details sent back to your return URL after the buyer completes the payment.
This is useful if you're simply going to display details back to the user, but it's not recommended for updating your own database, sending out email notifications, etc. because there is no guarantee this page will ever be reached so the code won't always run.
For that sort of thing you'll want to use Instant Payment Notification (IPN). This works very similar to PDT except that it will always POST data to your IPN listener on your server regardless of whether or not the user makes it back to your return URL, and it happens outside of your checkout system all together.
I want package sales, when user click on purchase want to send user on paypal site, after success payment back to my site, I will update payment status if payed other wise will not update the payment status. 2nd question how will i know user payed?
PayPal IPN allows the PayPal servers to interact with yours, telling them statuses about if they've paid, missed payment or it failed etc.
https://www.paypal.com/ipn
For example, if you're using the Website Payments Standard (https://www.paypal-business.co.uk/accept-online-payments-with-paypal/index.htm) you send them to the PayPal site by sending hidden information in a form, they do their thing on PayPal and then get sent back. PayPal will then notify the server using the IPN details that were either sent or are in the account, letting the server know if it was successful or if anything else happened. Then your application that picks up the IPN, does its security checks, and then does the appropriate action (e.g. allows the item to be sent or them to login etc).
However - if you're doing subscriptions, I highly recommend not using PayPal. They suck for subscriptions.
visit the following link
http://www.evoluted.net/thinktank/web-development/paypal-php-integration
and follow the step by step guide.
If not work then ask question here.
I have been using paypal in the past for selling stuff through my website ( e.g. memberships ) but I always had to verify through paypal whether the user really bought the membership (for example) before I could assign it to his/her account. Now I was wondering if there's a way that I can put a paypal purchase button onto my webpage to ( for example ) purchase a membership and then once the user paid, he'll automaticly be assigned the membership on my website ( e.g. there's a page purchase_result.php which assigns the membership, but ONLY if the user really bought it through paypal ). How can I make sure the user actually bought the item through paypal on the return page on my website?
Thanks in advance,
Skyfe.
btw, I hope my question can be understood
You would PayPal Instant Payment Notifications to receive a server-to-server notification from PayPal which you can subsequently verify and use to update your database.
IPN works as follows:
You create the PayPal and incude a "notify_url". The value for this parameter will be the full URL to a script on your server, called the 'IPN script' or 'IPN handler'.
You can specify an IPN handler as follows for Website Payments Standard
<input type="hidden" name="notify_url" value="http://blah.com/ipn.php
For Express Checkout or Website Payments Pro, simply include the following in your SetExpressCheckout/DoExpressCheckoutPayment or DoDirectPayment API call respectively.
NOTIFYURL=http://blah.com/ipn.php
A buyer completes a transaction via PayPal
Once the buyer completes the transaction, he/she may close the browser, or return to your website
Once the transaction is accepted and processed by PayPal, PayPal will send out a notification to http://blah.com/ipn.php
You need to take all POST data that was sent to this script, and POST it back to https://www.paypal.com/cgi-bin/webscr?cmd=_notify-validate
If the data you send back matches the data PayPal sent you, a 'VERIFIED' response is returned.
If the response is VERIFIED, it's at this point that you would look up the matching transaction/buyer on your end, and update your database appropriately.
Some sample code and documentation for PayPal IPN is available at https://www.paypal.com/ipn/
In addition, some tips on making a secure IPN script are available at https://www.x.com/developers/community/blogs/ppmtsrobertg/securing-your-instant-payment-notification-ipn-script
Note: If you want to include any custom data along with the transaction which you can read out later, use 'custom'.
<input type="hidden" name="custom" value="xxxxx">
This will also be returned in the IPN POST data sent from PayPal.
Im planning to allow people to create premium accounts on a site. There is a simple registration form, at the end of which I want to direct people to paypal where they will make a payment, and then be sent back to my site with their newly created account now activated (if transaction went thru).
I dont want a fully hosted solution ("Website Payments Pro"), but something where you leave the site, and then come back to it after payment.
Everything you need to get started
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Using the PayPal API, you'll be able to send users to PayPal to handle payments. Once the transaction has been completed it will then send a response to a script on your site, which you can then act on accordingly. For example, update a particular user's status as 'Paid' or 'Unpaid' in your members database table.
You want to look at PayPal IPN. With that, you can send these pages URLs as hidden fields and PayPal will then return the user to the page you submitted for success, failed, IPN handler etc.
Yes that's possible, look into the "Buy now"-method on PayPal, they have an off-site payment possibility and they have on-site payment. It's up to you how much you want to spend on both time and percentage on each sale.