Real-time paypal account php implementation code

Http://paypal.ebay.cn/integrationcenter/list__resource_2.html

Php development Introduction: http://www.paypal-china.org/wangzhai/197.html
The following is the payment code for paypal in ecshop:

This code is submitted to the paypal payment Interface
{{{

<Form target = "_ blank" method = "post" action = "https://www.paypal.com/cgi-bin/webscr" style = "text-align: center; "> <input type =" hidden "value =" _ xclick "name =" cmd "/> <input type =" hidden "value =" xfuajiao@hotmail.com "name =" business "/> // the email address registered by the merchant
<Input type = "hidden" value = "2009102370175" name = "item_name"/> <input type = "hidden" value = "2888.00" name = "amount"/> <input type = "hidden" value = "USD" name = "currency_code"/> <input type = "hidden" value = "http: // 127.0.0.1/ecshop/respond. php? Code = paypal "name =" return "/> <input type =" hidden "value =" 3 "name =" invoice "/> <input type =" hidden "value =" UTF-8 "name =" charset "/> <input type =" hidden "value =" 1 "name =" no_shipping "/> <input type =" hidden "value =" "name = "no_note"/> <input type = "hidden" value = "http: // 127.0.0.1/ecshop/respond. php? Code = paypal "name =" yy_url "/> <input type =" hidden "value =" 2 "name =" rm "/> <input type =" hidden "value =" http: // 127.0.0.1/ecshop/"name =" cancel_return "/> <input type =" submit "value =" Pay now with paypal "/> </form>

}}}

The following are officially provided parameters that are received by paypal and whether the payment is successful.

After successful submission

<Input type = "hidden" value = "http: // 127.0.0.1/ecshop/respond. php? Code = paypal "name =" return "/>

Paypal will automatically jump to espond. php? Code = paypal: The page shows the following POST data.

Copy codeThe Code is as follows: // read the post from PayPal system and add 'cmd'
$ Req = 'cmd = _ policy-validate ';

Foreach ($ _ POST as $ key => $ value ){
$ Value = urlencode (stripslashes ($ value ));
$ Req. = "& $ key = $ value ";
}

// Post back to PayPal system to validate
$ Header. = "POST/cgi-bin/webscr HTTP/1.0 \ r \ n ";
$ Header. = "Content-Type: application/x-www-form-urlencoded \ r \ n ";
$ Header. = "Content-Length:". strlen ($ req). "\ r \ n ";
$ Fp = fsockopen ('ssl: // www.paypal.com ', 443, $ errno, $ errstr, 30 );

// Assign posted variables to local variables
$ Item_name = $ _ POST ['item _ name'];
$ Item_number = $ _ POST ['item _ number'];
$ Payment_status = $ _ POST ['payment _ status'];
$ Payment_amount = $ _ POST ['mc _ gross '];
$ Payment_currency = $ _ POST ['mc _ currency '];
$ Txn_id = $ _ POST ['txn _ id'];
$ Receiver_email = $ _ POST ['receiver _ email '];
$ Payer_email = $ _ POST ['payer _ email '];

If (! $ Fp ){
// HTTP ERROR
Else {
Fputs ($ fp, $ header. $ req );
While (! Feof ($ fp )){
$ Res = fgets ($ fp, 1024 );
If (strcmp ($ res, "VERIFIED") = 0 ){
// Check the payment_status is Completed
// Check that txn_id has not been previusly processed
// Check that receiver_email is your Primary PayPal email
// Check that payment_amount/payment_currency are correct
// Process payment
}
Else if (strcmp ($ res, "INVALID") = 0 ){
// Log for manual investigation
}
}
Fclose ($ fp );
}
?>