PHP Consolidated PayPal Payment

Simply tidy up the PHP project to integrate PayPal payment function.

First, the form of the construction:

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<form method= "POST" name= "form" action= "HTTPS://WWW.PAYPAL.COM/CGI-BIN/WEBSCR" > <input type= "hidden" RM "value=" 2 "/> <input type=" hidden "name=" cmd "value=" _xclick "/> <input type=" hidden "name=" business " Value= "merchant account"/> <input type= "hidden" "name=" return "value=" returns to the URL "/> <input type=" hidden "name=" Cancel_return "Value=" cancels the return url "/> <input type=" hidden "name=" Notify_url "value=" is used to receive PayPal-sent instant payment notification URLs that must be valid URLs "/> < Input type= "hidden" name= "Item_name" value= "Item name"/> <input type= "hidden" name= "Item_Number" Can be used to track the delivery variables purchased or donated, and return the price of the "/> <input type=" hidden "name=" Amount "value=" items (the total price of all items in the shopping cart) at the completion of the payment/> Type= "hidden" name= "Currency_code" value= "Currency"/> </form>

Second, IPN verification part

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<?php class PayPal {var $ipn _data = Array ();//array contains the POST values fo R IPN var $fields = array (); Submit a form parameter to PayPal, example: Item_name=iphone 6,QUANTITY=1,AMOUNT=499,CURRENCY_CODE=USD all form information,//before calling the validation IPN First need to initialize good var $paypal _url = ' 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 to a arry so we can play with th 　　　　　　EM 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=_notify-validate"; Append IPN command//Open the connection to PayPal $fp = Fsockopen ($url _par[host], "No", $errnum, $errstr, 30); 　　　　　　　　if (! $fp) {//Could not open the connection. 　　　　　　return false; else {//post the data back to PayPal fputs ($fp, "post". $url _par[path]. " 　　　　　　　　Http/1.1rn "); Fputs ($FP, "Host:". $url _par[host]. " 　　　　　　　　RN "); 　　　　　　　　Fputs ($fp, "content-type:application/x-www-form-urlencodedrn"); Fputs ($FP, "Content-length:". strlen ($post _str). " 　　　　　　　　RN "); 　　　　　　　　Fputs ($fp, "connection:closernrn"); Fputs ($fp, $post _str. 　　　　　　　　"Rnrn"); Loop through the response from the "server and append to variable" while (!feof ($fp)) {$this->valida 　　　　　　　　Te_ipn_response. = Fgets ($fp, 1024); } fclose ($FP); 　　　　Close connection} if (Eregi ("verified", $this->validate_ipn_response)) {return true; 　　　　else {return false; }}?>

The above is the entire contents of this article, I hope you can enjoy.