exedesign2

require_once ("paypalfunctions.php"); $PaymentOption = "PayPal"; if ( $PaymentOption == "PayPal") { // ================================== // PayPal Express Checkout Module // ================================== //'------------------------------------ //' The paymentAmount is the total value of //' the purchase. //' //' TODO: Enter the total Payment Amount within the quotes. //' example : $paymentAmount = "15.00"; //'------------------------------------ $paymentAmount = "99"; //'------------------------------------ //' The currencyCodeType //' is set to the selections made on the Integration Assistant //'------------------------------------ $currencyCodeType = "USD"; $paymentType = "Sale"; //'------------------------------------ //' The returnURL is the location where buyers return to when a //' payment has been succesfully authorized. //' //' This is set to the value entered on the Integration Assistant //'------------------------------------ $returnURL = "http://127.0.0.1/digitalgoodsexample/orderconfirm.php"; //'------------------------------------ //' The cancelURL is the location buyers are sent to when they hit the //' cancel button during authorization of payment during the PayPal flow //' //' This is set to the value entered on the Integration Assistant //'------------------------------------ $cancelURL = "http://127.0.0.1/digitalgoodsexample/cancel.php"; //'------------------------------------ //' Calls the SetExpressCheckout API call //' //' The CallSetExpressCheckout function is defined in the file PayPalFunctions.php, //' it is included at the top of this file. //'------------------------------------------------- $items = array(); $items[] = array('name' => 'PayPal Digital Goods Integration Guide', 'amt' => $paymentAmount, 'qty' => 1); //::ITEMS:: // to add anothe item, uncomment the lines below and comment the line above // $items[] = array('name' => 'Item Name1', 'amt' => $itemAmount1, 'qty' => 1); // $items[] = array('name' => 'Item Name2', 'amt' => $itemAmount2, 'qty' => 1); // $paymentAmount = $itemAmount1 + $itemAmount2; // assign corresponding item amounts to "$itemAmount1" and "$itemAmount2" // NOTE : sum of all the item amounts should be equal to payment amount $resArray = SetExpressCheckoutDG( $paymentAmount, $currencyCodeType, $paymentType, $returnURL, $cancelURL, $items ); $ack = strtoupper($resArray["ACK"]); if($ack == "SUCCESS" || $ack == "SUCCESSWITHWARNING") { $token = urldecode($resArray["TOKEN"]); RedirectToPayPalDG( $token ); } else { //Display a user friendly Error on the page using any of the following error information returned by PayPal $ErrorCode = urldecode($resArray["L_ERRORCODE0"]); $ErrorShortMsg = urldecode($resArray["L_SHORTMESSAGE0"]); $ErrorLongMsg = urldecode($resArray["L_LONGMESSAGE0"]); $ErrorSeverityCode = urldecode($resArray["L_SEVERITYCODE0"]); echo "SetExpressCheckout API call failed. "; echo "Detailed Error Message: " . $ErrorLongMsg; echo "Short Error Message: " . $ErrorShortMsg; echo "Error Code: " . $ErrorCode; echo "Error Severity Code: " . $ErrorSeverityCode; } }<code>I am using the above paypal function to send users to paypal for payment. However, I would like to automatically insert the product price on the line:</code>$paymentAmount = "99"<code>instead of numeric value using a meta value that is:</code>echo get_post_meta($post->ID, 'download_info_price', true I am have been perfectly able to make the paypal functions work, but only with numeric value by using it as a template page for my checkout page. I believe that I need something that help me echo meta value outside of the loop and using:`global $wp_query; $postid = $wp_query->post->ID; echo get_post_meta($postid, 'Your-Custom-Field', true);`did not get me anywhere. with the above, I tried calling /wp-load.php in the paypal functions, but no result. The price/amount I want to automate is require by my paypal checkout file that is called on the header of above codesrequire_once ("paypalfunctions.php")the paypal checkout is:`/******************************************** PayPal API Module Defines all the global variables and the wrapper functions ********************************************/ $PROXY_HOST = '127.0.0.1'; $PROXY_PORT = '808'; $SandboxFlag = true; //' TODO: //'------------------------------------ //' PayPal API Credentials //' Replace <API_USERNAME> with your API Username //' Replace <API_PASSWORD> with your API Password //' Replace <API_SIGNATURE> with your Signature //'------------------------------------ $API_UserName=//this is hidden; $API_Password=//this is hidden; $API_Signature=//this is hidden; // BN Code is only applicable for partners $sBNCode = "PP-ECWizard"; /* ' Define the PayPal Redirect URLs. ' This is the URL that the buyer is first sent to do authorize payment with their paypal account ' change the URL depending if you are testing on the sandbox or the live PayPal site ' ' For the sandbox, the URL is https://www.sandbox.paypal.com/webscr&cmd=_express-checkout&token= ' For the live site, the URL is https://www.paypal.com/webscr&cmd=_express-checkout&token= */ if ($SandboxFlag == true) { $API_Endpoint = "https://api-3t.sandbox.paypal.com/nvp"; $PAYPAL_URL = "https://www.sandbox.paypal.com/webscr?cmd=_express-checkout&token="; $PAYPAL_DG_URL = "https://www.sandbox.paypal.com/incontext?token="; } else { $API_Endpoint = "https://api-3t.paypal.com/nvp"; $PAYPAL_URL = "https://www.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token="; $PAYPAL_DG_URL = "https://www.paypal.com/incontext?token="; } $USE_PROXY = false; $version = "84"; /* An express checkout transaction starts with a token, that identifies to PayPal your transaction In this example, when the script sees a token, the script knows that the buyer has already authorized payment through paypal. If no token was found, the action is to send the buyer to PayPal to first authorize payment */ /* '------------------------------------------------------------------------------------------------------------------------------------------- ' Purpose: Prepares the parameters for the SetExpressCheckout API Call for a Digital Goods payment. ' Inputs: ' paymentAmount: Total value of the shopping cart ' currencyCodeType: Currency code value the PayPal API ' paymentType: paymentType has to be one of the following values: Sale or Order or Authorization ' returnURL: the page where buyers return to after they are done with the payment review on PayPal ' cancelURL: the page where buyers return to when they cancel the payment review on PayPal '-------------------------------------------------------------------------------------------------------------------------------------------- */ function SetExpressCheckoutDG( $paymentAmount, $currencyCodeType, $paymentType, $returnURL, $cancelURL, $items) { //------------------------------------------------------------------------------------------------------------------------------------ // Construct the parameter string that describes the SetExpressCheckout API call in the shortcut implementation $nvpstr = "&PAYMENTREQUEST_0_AMT=". $paymentAmount; $nvpstr .= "&PAYMENTREQUEST_0_PAYMENTACTION=" . $paymentType; $nvpstr .= "&RETURNURL=" . $returnURL; $nvpstr .= "&CANCELURL=" . $cancelURL; $nvpstr .= "&PAYMENTREQUEST_0_CURRENCYCODE=" . $currencyCodeType; $nvpstr .= "&REQCONFIRMSHIPPING=0"; $nvpstr .= "&NOSHIPPING=1"; foreach($items as $index => $item) { $nvpstr .= "&L_PAYMENTREQUEST_0_NAME" . $index . "=" . urlencode($item["name"]); $nvpstr .= "&L_PAYMENTREQUEST_0_AMT" . $index . "=" . urlencode($item["amt"]); $nvpstr .= "&L_PAYMENTREQUEST_0_QTY" . $index . "=" . urlencode($item["qty"]); $nvpstr .= "&L_PAYMENTREQUEST_0_ITEMCATEGORY" . $index . "=Digital"; } //'--------------------------------------------------------------------------------------------------------------- //' Make the API call to PayPal //' If the API call succeded, then redirect the buyer to PayPal to begin to authorize payment. //' If an error occured, show the resulting errors //'--------------------------------------------------------------------------------------------------------------- $resArray = hash_call("SetExpressCheckout", $nvpstr); $ack = strtoupper($resArray["ACK"]); if($ack == "SUCCESS" || $ack == "SUCCESSWITHWARNING") { $token = urldecode($resArray["TOKEN"]); $_SESSION['TOKEN'] = $token; } return $resArray; } /* '------------------------------------------------------------------------------------------- ' Purpose: Prepares the parameters for the GetExpressCheckoutDetails API Call. ' ' Inputs: ' None ' Returns: ' The NVP Collection object of the GetExpressCheckoutDetails Call Response. '------------------------------------------------------------------------------------------- */ function GetExpressCheckoutDetails( $token ) { //'-------------------------------------------------------------- //' At this point, the buyer has completed authorizing the payment //' at PayPal. The function will call PayPal to obtain the details //' of the authorization, incuding any shipping information of the //' buyer. Remember, the authorization is not a completed transaction //' at this state - the buyer still needs an additional step to finalize //' the transaction //'-------------------------------------------------------------- //'--------------------------------------------------------------------------- //' Build a second API request to PayPal, using the token as the //' ID to get the details on the payment authorization //'--------------------------------------------------------------------------- $nvpstr="&TOKEN=" . $token; //'--------------------------------------------------------------------------- //' Make the API call and store the results in an array. //' If the call was a success, show the authorization details, and provide //' an action to complete the payment. //' If failed, show the error //'--------------------------------------------------------------------------- $resArray=hash_call("GetExpressCheckoutDetails",$nvpstr); $ack = strtoupper($resArray["ACK"]); if($ack == "SUCCESS" || $ack=="SUCCESSWITHWARNING") { return $resArray; } else return false; } /* '------------------------------------------------------------------------------------------------------------------------------------------- ' Purpose: Prepares the parameters for the GetExpressCheckoutDetails API Call. ' ' Inputs: ' sBNCode: The BN code used by PayPal to track the transactions from a given shopping cart. ' Returns: ' The NVP Collection object of the GetExpressCheckoutDetails Call Response. '-------------------------------------------------------------------------------------------------------------------------------------------- */ function ConfirmPayment( $token, $paymentType, $currencyCodeType, $payerID, $FinalPaymentAmt, $items ) { /* Gather the information to make the final call to finalize the PayPal payment. The variable nvpstr holds the name value pairs */ $token = urlencode($token); $paymentType = urlencode($paymentType); $currencyCodeType = urlencode($currencyCodeType); $payerID = urlencode($payerID); $serverName = urlencode($_SERVER['SERVER_NAME']); $nvpstr = '&TOKEN=' . $token . '&PAYERID=' . $payerID . '&PAYMENTREQUEST_0_PAYMENTACTION=' . $paymentType . '&PAYMENTREQUEST_0_AMT=' . $FinalPaymentAmt; $nvpstr .= '&PAYMENTREQUEST_0_CURRENCYCODE=' . $currencyCodeType . '&IPADDRESS=' . $serverName; foreach($items as $index => $item) { $nvpstr .= "&L_PAYMENTREQUEST_0_NAME" . $index . "=" . urlencode($item["name"]); $nvpstr .= "&L_PAYMENTREQUEST_0_AMT" . $index . "=" . urlencode($item["amt"]); $nvpstr .= "&L_PAYMENTREQUEST_0_QTY" . $index . "=" . urlencode($item["qty"]); $nvpstr .= "&L_PAYMENTREQUEST_0_ITEMCATEGORY" . $index . "=Digital"; } /* Make the call to PayPal to finalize payment If an error occured, show the resulting errors */ $resArray=hash_call("DoExpressCheckoutPayment",$nvpstr); /* Display the API response back to the browser. If the response from PayPal was a success, display the response parameters' If the response was an error, display the errors received using APIError.php. */ $ack = strtoupper($resArray["ACK"]); return $resArray; } /** '------------------------------------------------------------------------------------------------------------------------------------------- * hash_call: Function to perform the API call to PayPal using API signature * @methodName is name of API method. * @nvpStr is nvp string. * returns an associtive array containing the response from the server. '------------------------------------------------------------------------------------------------------------------------------------------- */ function hash_call($methodName,$nvpStr) { //declaring of global variables global $API_Endpoint, $version, $API_UserName, $API_Password, $API_Signature; global $USE_PROXY, $PROXY_HOST, $PROXY_PORT; global $gv_ApiErrorURL; global $sBNCode; //setting the curl parameters. $ch = curl_init(); curl_setopt($ch, CURLOPT_URL,$API_Endpoint); curl_setopt($ch, CURLOPT_VERBOSE, 1); //turning off the server and peer verification(TrustManager Concept). curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); curl_setopt($ch, CURLOPT_POST, 1); //if USE_PROXY constant set to TRUE in Constants.php, then only proxy will be enabled. //Set proxy name to PROXY_HOST and port number to PROXY_PORT in constants.php if($USE_PROXY) curl_setopt ($ch, CURLOPT_PROXY, $PROXY_HOST. ":" . $PROXY_PORT); //NVPRequest for submitting to server $nvpreq="METHOD=" . urlencode($methodName) . "&VERSION=" . urlencode($version) . "&PWD=" . urlencode($API_Password) . "&USER=" . urlencode($API_UserName) . "&SIGNATURE=" . urlencode($API_Signature) . $nvpStr . "&BUTTONSOURCE=" . urlencode($sBNCode); //setting the nvpreq as POST FIELD to curl curl_setopt($ch, CURLOPT_POSTFIELDS, $nvpreq); //getting response from server $response = curl_exec($ch); //convrting NVPResponse to an Associative Array $nvpResArray=deformatNVP($response); $nvpReqArray=deformatNVP($nvpreq); $_SESSION['nvpReqArray']=$nvpReqArray; if (curl_errno($ch)) { // moving to display page to display curl errors $_SESSION['curl_error_no']=curl_errno($ch) ; $_SESSION['curl_error_msg']=curl_error($ch); //Execute the Error handling module to display errors. } else { //closing the curl curl_close($ch); } return $nvpResArray; } /*'---------------------------------------------------------------------------------- Purpose: Redirects to PayPal.com site. Inputs: NVP string. Returns: ---------------------------------------------------------------------------------- */ function RedirectToPayPal ( $token ) { global $PAYPAL_URL; // Redirect to paypal.com here $payPalURL = $PAYPAL_URL . $token; header("Location: ".$payPalURL); exit; } function RedirectToPayPalDG ( $token ) { global $PAYPAL_DG_URL; // Redirect to paypal.com here $payPalURL = $PAYPAL_DG_URL . $token; header("Location: ".$payPalURL); exit; } /*'---------------------------------------------------------------------------------- * This function will take NVPString and convert it to an Associative Array and it will decode the response. * It is usefull to search for a particular key and displaying arrays. * @nvpstr is NVPString. * @nvpArray is Associative Array. ---------------------------------------------------------------------------------- */ function deformatNVP($nvpstr) { $intial=0; $nvpArray = array(); while(strlen($nvpstr)) { //postion of Key $keypos= strpos($nvpstr,'='); //position of value $valuepos = strpos($nvpstr,'&') ? strpos($nvpstr,'&'): strlen($nvpstr); /*getting the Key and Value values and storing in a Associative Array*/ $keyval=substr($nvpstr,$intial,$keypos); $valval=substr($nvpstr,$keypos+1,$valuepos-$keypos-1); //decoding the respose $nvpArray[urldecode($keyval)] =urldecode( $valval); $nvpstr=substr($nvpstr,$valuepos+1,strlen($nvpstr)); } return $nvpArray; }