ipn-code-samples/php/example_usage_advanced.php at ef042b175563841f93469e4a0518efad104f87b9 · paypal/ipn-code-samples · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
<?php namespace Listener;

// Set this to true to use the sandbox endpoint during testing:
$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@example.com", "my_email_address2@example.com", "my_email_address3@example.com");

// Set this to true to send a confirmation email:
$send_confirmation_email = true;
$confirmation_email_name = "My Name";
$confirmation_email_address = "my_email_address@example.com";

// Set these to the name and email address that you are sending emails from:
$from_email_name = "My Name";
$from_email_address = "my_email_address@example.com";

// Set this to true to save a log file:
$save_log_file = true;
$log_file_dir = __DIR__ . "/logs";

// Here is some information on how to configure sendmail:
// http://php.net/manual/en/function.mail.php#118210


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);

$data_text = "";
foreach ($DATA as $key => $value) {
    $data_text .= $key . " = " . $value . "\r\n";
}

$test_text = "";
if ($DATA["test_ipn"] == 1) {
    $test_text = "Test ";
}

// Check the receiver email to see if it matches your list of paypal email addresses
$receiver_email_found = false;
foreach ($my_email_addresses as $a) {
    if (strtolower($DATA["receiver_email"]) == strtolower($a)) {
        $receiver_email_found = true;
        break;
    }
}

$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, $html = false) {
    if (is_null($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 . ">";
    $send_email_header  = "MIME-Version: 1.0";
    if ($html) {
        $body = "<html><head><title>" . $subject . "</title></head><body>" . $body . "</body></html>";
        $send_email_header .= "\r\n" . "Content-type: text/html; charset=UTF-8";
    } else {
        $send_email_header .= "\r\n" . "Content-type: text/plain; charset=UTF-8";
    }
    $send_email_header .= "\r\n" . "From: " . $send_email_from;
    return mail($send_email_to, "=?UTF-8?B?" . base64_encode($subject) . "?=", $body, $send_email_header);
}

function send_html_email($name, $address, $subject, $body, $from_name = null, $from_address = null) {
    return send_email($name, $address, $subject, $body, $from_name, $from_address, true);
}

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 " . $DATA["item_name"] . ".<BR><BR>This is an example email only.<BR><BR>Thank you.</p>";
        send_html_email($email_name, $email_address, $email_subject, $email_body);
    }

}

if ($save_log_file) {
    $dated_log_file_dir = $log_file_dir . "/" . $test_text . $year . "/" . $test_text . $month;
    // Create log file directory
    if (!is_dir($dated_log_file_dir)) {
        if (!file_exists($dated_log_file_dir)) {
            mkdir($dated_log_file_dir, 0777, true);
            if (!is_dir($dated_log_file_dir)) {
                $save_log_file = false;
            }
        } else {
            $save_log_file = false;
        }
    }
    // Restrict web access to files in the log file directory
    $htaccess_body = "RewriteEngine On" . "\r\n" . "RewriteRule .* - [L,R=404]";
    if ($save_log_file && (!is_file($log_file_dir . "/.htaccess") || file_get_contents($log_file_dir . "/.htaccess") !== $htaccess_body)) {
        if (!is_dir($log_file_dir . "/.htaccess")) {
            file_put_contents($log_file_dir . "/.htaccess", $htaccess_body);
            if (!is_file($log_file_dir . "/.htaccess") || file_get_contents($log_file_dir . "/.htaccess") !== $htaccess_body) {
                $save_log_file = false;
            }
        } else {
            $save_log_file = false;
        }
    }
    if ($save_log_file) {
        // Save data to text file
        file_put_contents($dated_log_file_dir . "/" . $test_text . "paypal_ipn_" . $date . ".txt", $paypal_ipn_status . "\r\n" . $timestamp . "\r\n" . $data_text . "\r\n", FILE_APPEND);
    }
}

if ($send_confirmation_email) {
    // Send confirmation email
    send_email($confirmation_email_name, $confirmation_email_address, $test_text . "PayPal IPN : " . $paypal_ipn_status, $paypal_ipn_status . "\r\n" . $timestamp . "\r\n" . $data_text);
}

// Reply with an empty 200 response to indicate to paypal the IPN was received correctly
header("HTTP/1.1 200 OK");