PayPal website payment Standard Edition (forPHP), paypal Standard Edition _ PHP Tutorial

PayPal website payment Standard Edition (forPHP), paypal Standard Edition. PayPal website payment Standard Edition (forPHP), paypal Standard Edition simple arrangement PHP project integration PayPal payment function. 1. Form Construction: formmethodpostnameformactionhtt PayPal website payment Standard Edition (for PHP), paypal Standard edition

Simply sort out the PHP project and integrate the PayPal payment function.

1. form construction:

II. IPN verification

 // You must return the original POST information to PayPal for verification,
// The content includes item_name = iPhone 6, quantity = 1, amount = 499, currency_code = USD, and other form information,
// Initialize var $ paypal_url = 'before calling IPN verification' https://www.paypal.com/cgi-bin/webscr '; // Sandbox: https://www.sandbox.paypal.com/cgi-bin/webscr Function validate_ipn () {// verify IPN // parse the paypal URL $ url_par = parse_url ($ this-> paypal_url ); // generate the post string from the _ POST vars aswell as load the // _ POST vars into an arry so we can play with them from the calling // script. $ post_str = ''; foreach ($ _ POST as $ field => $ value) {$ this-> ipn_data [" $ field "] = $ value; $ post_str. = $ field. '= '. urlencode (stripslashes ($ value )). '&';} $ post _ Str. = "cmd = _ policy-validate"; // append ipn command // open the connection to paypal $ fp = fsockopen ($ url_par [host], "80", $ errnum, $ errstr, 30); if (! $ Fp) {// cocould not open the connection. return false;} else {// Post the data back to paypal fputs ($ fp, "POST ". $ url_par [path]. "HTTP/1.1 \ r \ n"); fputs ($ fp, "Host :". $ url_par [host]. "\ r \ n"); fputs ($ fp, "Content-type: application/x-www-form-urlencoded \ r \ n"); fputs ($ fp, "Content-length :". strlen ($ post_str ). "\ r \ n"); fputs ($ fp, "Connection: close \ r \ n"); fputs ($ fp, $ post_str. "\ r \ n"); // loop Through the response from the server and append to variable while (! Feof ($ fp) {$ this-> validate_ipn_response. = fgets ($ fp, 1024);} fclose ($ fp); // close connection} if (eregi ("VERIFIED", $ this-> validate_ipn_response )) {return true;} else {return false ;}}}?>

The instant payment notification (IPN) is as follows:

1) the customer clicks the "payment" button to pay for your account;

2) after receiving the payment from the customer, PayPal sends IPN to the URL specified by your server through POST;

3) after your server receives the IPN, you must return the received POST information to PayPal for verification. PayPal uses this method to prevent spoofing or "man-in-the-middle" attacks; (The verification process for IPN information is called notification confirmation)

4) PayPal returns the verification information. if it passes verification, it is VERIFIED. if it fails, it is INVALD;

5) process the payment details based on the verification information.

Related information:

Developer: https://developer.paypal.com/
Instant Payment Notification: https://www.paypal-biz.com/development/documentation/PayPal_IPN&PDT_Guide_V1.0.pdf
Paypal Standard Edition: https://www.paypal-biz.com/development/documentation/PayPal_WPS_Guide_CN_V2.0.pdf

Alipay (for PHP), paypal Standard edition a simple arrangement of PHP project integration PayPal payment function. 1. form Construction: form method = "post" name = "form" action = "htt...