added html and unicode email support to advanced example

php/example_usage_advanced.php

@@ -4,82 +4,135 @@
 $enable_sandbox = true;
 
 // Use this to specify all of the email addresses that you have attached to paypal:
-$my_email_addresses = array("my_email_address@gmail.com", "my_email_address2@gmail.com", "my_email_address3@gmail.com");
+$my_email_addresses = array("seller@paypalsandbox.com", "seller2@paypalsandbox.com", "seller3@paypalsandbox.com");
 
 // Set this to true to send a confirmation email:
 $send_confirmation_email = true;
-$confirmation_email_address = "My Name <[email protected]>";
-$from_email_address = "My Name <[email protected]>";
+$confirmation_email_name = "My Name";
+$confirmation_email_address = "[email protected]";
+$from_email_name = "My Name";
+$from_email_address = "[email protected]";
 
 // Set this to true to save a log file:
 $save_log_file = true;
 $log_file_dir = __DIR__ . "/logs";
 
+// Set this to true to also log un-decoded data:
+$log_raw_data = false;
+
 // Here is some information on how to configure sendmail:
 // http://php.net/manual/en/function.mail.php#118210
 
 
 
-require('PaypalIPN.php');
+date_default_timezone_set("America/Los_Angeles");
+list($year, $month, $day, $hour, $minute, $second, $timezone) = explode(":", date("Y:m:d:H:i:s:T"));
+$date = $year . "-" . $month . "-" . $day;
+$timestamp = $date . " " . $hour . ":" . $minute . ":" . $second . " " . $timezone;
+
+require("PaypalIPN.php");
 use PaypalIPN;
 $ipn = new PaypalIPN();
 if ($enable_sandbox) {
     $ipn->useSandbox();
 }
 $verified = $ipn->verifyIPN();
 
+if (is_array($verified)) {
+    $DATA = $verified;
+} else {
+    $DATA = $_POST;
+}
+ksort($DATA);
+
 $data_text = "";
-foreach ($_POST as $key => $value) {
+foreach ($DATA as $key => $value) {
     $data_text .= $key . " = " . $value . "\r\n";
 }
 
+$raw_data_text = "";
+if ($log_raw_data) {
+    $RAW_DATA = array();
+    foreach (explode("&", file_get_contents("php://input")) as $keyval) {
+        $keyval = explode("=", $keyval);
+        if (count($keyval) == 2) {
+            $RAW_DATA[$keyval[0]] = $keyval[1];
+        }
+    }
+    ksort($RAW_DATA);
+    foreach ($RAW_DATA as $key => $value) {
+        $raw_data_text .= "RAW: " . $key . " = " . $value . "\r\n";
+    }
+}
+
 $test_text = "";
-if ($_POST["test_ipn"] == 1) {
+if ($DATA["test_ipn"] == 1) {
     $test_text = "Test ";
 }
 
+$dated_log_file_dir = $log_file_dir . "/" . $test_text . $year . "/" . $test_text . $month;
+
 // Check the receiver email to see if it matches your list of paypal email addresses
 $receiver_email_found = false;
 foreach ($my_email_addresses as $a) {
-    if (strtolower($_POST["receiver_email"]) == strtolower($a)) {
+    if (strtolower($DATA["receiver_email"]) == strtolower($a)) {
         $receiver_email_found = true;
         break;
     }
 }
 
-date_default_timezone_set("America/Los_Angeles");
-list($year, $month, $day, $hour, $minute, $second, $timezone) = explode(":", date("Y:m:d:H:i:s:T"));
-$date = $year . "-" . $month . "-" . $day;
-$timestamp = $date . " " . $hour . ":" . $minute . ":" . $second . " " . $timezone;
-$dated_log_file_dir = $log_file_dir . "/" . $year . "/" . $month;
-
+$process_ipn = false;
 $paypal_ipn_status = "VERIFICATION FAILED";
 if ($verified) {
     $paypal_ipn_status = "RECEIVER EMAIL MISMATCH";
     if ($receiver_email_found) {
+        $process_ipn = true;
         $paypal_ipn_status = "Completed Successfully";
+    }
+} elseif ($enable_sandbox) {
+    if ($DATA["test_ipn"] != 1) {
+        $paypal_ipn_status = "RECEIVED FROM LIVE WHILE SANDBOXED";
+    }
+} elseif ($DATA["test_ipn"] == 1) {
+    $paypal_ipn_status = "RECEIVED FROM SANDBOX WHILE LIVE";
+}
 
+function send_email($name, $address, $subject, $body, $from_name = null, $from_address = null, $html = true) {
+    if (is_null($from_name)) { $from_name = $GLOBALS["from_email_name"]; }
+    if (is_null($from_address)) { $from_address = $GLOBALS["from_email_address"]; }
+    $send_email_to = "=?UTF-8?B?" . base64_encode($name) . "?= <" . $address . ">";
+    $send_email_from = "=?UTF-8?B?" . base64_encode($from_name) . "?= <" . $from_address . ">";
+    $send_email_header  = "MIME-Version: 1.0" . "\r\n";
+    if ($html) {
+        $body = "<html><head><title>" . $subject . "</title></head><body>" . $body . "</body></html>";
+        $send_email_header .= "Content-type: text/html; charset=UTF-8" . "\r\n";
+    } else {
+        $send_email_header .= "Content-type: text/plain; charset=UTF-8" . "\r\n";
+    }
+    $send_email_header .= "To: " . $send_email_to . "\r\n";
+    $send_email_header .= "From: " . $send_email_from . "\r\n";
+    return mail($send_email_to, "=?UTF-8?B?" . base64_encode($subject) . "?=", $body, $send_email_header);
+}
 
-        // Process IPN
-        // A list of variables are available here:
-        // https://developer.paypal.com/webapps/developer/docs/classic/ipn/integration-guide/IPNandPDTVariables/
+function send_plain_email($name, $address, $subject, $body, $from_name = null, $from_address = null) {
+    return send_email($name, $address, $subject, $body, $from_name, $from_address, false);
+}
 
-        // This is an example for sending an automated email to the customer when they purchases an item for a specific amount:
-        if ($_POST["item_name"] == "Example Item" && $_POST["mc_gross"] == 49.99 && $_POST["mc_currency"] == "USD" && $_POST["payment_status"] == "Completed") {
-            $email_to = $_POST["first_name"] . " " . $_POST["last_name"] . " <" . $_POST["payer_email"] . ">";
-            $email_subject = $test_text . "Completed order for: " . $_POST["item_name"];
-            $email_body = "Thank you for purchasing " . $_POST["item_name"] . "." . "\r\n" . "\r\n" . "This is an example email only." . "\r\n" . "\r\n" . "Thank you.";
-            mail($email_to, $email_subject, $email_body, "From: " . $from_email_address);
-        }
+if ($process_ipn) {
 
+    // Process IPN
+    // A list of variables are available here:
+    // https://developer.paypal.com/webapps/developer/docs/classic/ipn/integration-guide/IPNandPDTVariables/
 
+    // This is an example for sending an automated email to the customer when they purchases an item for a specific amount:
+    if ($DATA["item_name"] == "something" && $DATA["mc_gross"] == 12.34 && $DATA["mc_currency"] == "USD" && $DATA["payment_status"] == "Completed") {
+        $email_name = $DATA["first_name"] . " " . $DATA["last_name"];
+        $email_address = $DATA["payer_email"];
+        $email_subject = $test_text . "Completed order for: " . $DATA["item_name"];
+        $email_body = "<p>Thank you for purchasing " . $DATA["item_name"] . ".<BR><BR>This is an example email only.<BR><BR>Thank you.</p>";
+        send_email($email_name, $email_address, $email_subject, $email_body);
     }
-} elseif ($enable_sandbox) {
-    if ($_POST["test_ipn"] != 1) {
-        $paypal_ipn_status = "RECEIVED FROM LIVE WHILE SANDBOXED";
-    }
-} elseif ($_POST["test_ipn"] == 1) {
-    $paypal_ipn_status = "RECEIVED FROM SANDBOX WHILE LIVE";
+
 }
 
 if ($save_log_file) {
@@ -108,13 +161,15 @@
     }
     if ($save_log_file) {
         // Save data to text file
-        file_put_contents($dated_log_file_dir . "/" . $test_text . "paypal_ipn_" . $date . ".txt", "paypal_ipn_status = " . $paypal_ipn_status . "\r\n" . "paypal_ipn_date = " . $timestamp . "\r\n" . $data_text . "\r\n", FILE_APPEND);
+        file_put_contents($dated_log_file_dir . "/" . $test_text . "paypal_ipn_" . $date . ".txt", $paypal_ipn_status . "\r\n" . $timestamp . "\r\n" . $data_text . $raw_data_text . "\r\n", FILE_APPEND);
     }
 }
 
 if ($send_confirmation_email) {
     // Send confirmation email
-    mail($confirmation_email_address, $test_text . "PayPal IPN : " . $paypal_ipn_status, "paypal_ipn_status = " . $paypal_ipn_status . "\r\n" . "paypal_ipn_date = " . $timestamp . "\r\n" . $data_text, "From: " . $from_email_address);
+    $email_subject = $test_text . "PayPal IPN : " . $paypal_ipn_status;
+    $email_body = $paypal_ipn_status . "\r\n" . $timestamp . "\r\n" . "\r\n" . $data_text . "\r\n" . $raw_data_text;
+    send_plain_email($confirmation_email_name, $confirmation_email_address, $email_subject, $email_body);
 }
 
 // Reply with an empty 200 response to indicate to paypal the IPN was received correctly