我想在 PayPal 付款表单中添加一个变量。然后我想将它添加到数据库中。该变量称为“membre_id”（用户 ID），可在 $_SESSION['membre_id'] 中找到。
这是表单处理的代码：
<?php
require 'lib/init.php';
$action = isset($_POST['action']) ? $_POST['action'] : (isset($_GET['action']) ? $_GET['action'] : '');
if ( !empty($action) ) {
switch ( $action ) {
/**************************************************** ****************************************************** **********************/
case 'paypal_ipn':
require ('lib/vendor/ipnlistener.php');
$listener = new IpnListener();
try {
$verified = $listener->processIpn();
if ( $verified ) {
// parse our custom field data
$custom = post('custom');
if ( $custom ) {
parse_str(post('custom'), $data);
} else {
$data = array();
}
// pull out some values
$payment_gross = post('payment_gross');
$item_name = post('item_name');
// build customer data
$name = isset($data['name']) && $data['name'] ? $data['name'] : null;
$name_arr = explode(' ', trim($name));
$first_name = $name_arr[0];
$last_name = trim(str_replace($first_name, '', $name));
$email = isset($data['email']) && $data['email'] ? $data['email'] : null;
$description = $item_name ? $item_name : 'no description entered';
$address = isset($data['address']) && $data['address'] ? $data['address'] : null;
$city = isset($data['city']) && $data['city'] ? $data['city'] : null;
$state = isset($data['state']) && $data['state'] ? $data['state'] : null;
$zip = isset($data['zip']) && $data['zip'] ? $data['zip'] : null;
$country = isset($data['country']) && $data['country'] ? $data['country'] : null;
// check for invoice first
if ( isset($data['invoice_id']) && $data['invoice_id'] ) {
$invoice = Model::factory('Invoice')->find_one($data['invoice_id']);
$amount = $invoice->amount;
$type = 'invoice';
$description = $invoice->description;
// now check for item
} elseif ( isset($data['item_id']) && $data['item_id'] ) {
$item = Model::factory('Item')->find_one($data['item_id']);
$amount = $item->price;
$type = 'item';
// check for input amount
} elseif ( $payment_gross ) {
$amount = $payment_gross;
$type = 'input';
// return error if none found
} else {
$amount = 0;
$type = '';
}
switch ( post('txn_type') ) {
case 'web_accept':
// save payment record
$payment = Model::factory('Payment')->create();
$payment->invoice_id = isset($invoice) ? $invoice->id : null;
$payment->name = $name;
$payment->email = $email;
$payment->amount = $amount;
$payment->description = isset($item) ? $item->name : $description;
$payment->address = $address;
$payment->city = $city;
$payment->state = $state;
$payment->zip = $zip;
$payment->country = $country;
$payment->type = $type;
$payment->paypal_transaction_id = post('txn_id');
$payment->save();
// update paid invoice
if ( isset($invoice) ) {
$invoice->status = 'Paid';
$invoice->date_paid = date('Y-m-d H:i:s');
$invoice->save();
}
// build email values first
$values = array(
'customer_name' => $payment->name,
'customer_email' => $payment->email,
'amount' => currency($payment->amount) . '<small>' . currencySuffix() . '</small>',
'description_title' => isset($item) ? 'Item' : 'Description',
'description' => $payment->description,
'payment_method' => 'PayPal',
'transaction_id' => $payment->paypal_transaction_id,
'url' => url(''),
);
email($config['email'], 'payment-confirmation-admin', $values, 'You\'ve received a new payment!');
email($payment->email, 'payment-confirmation-customer', $values, 'Thank you for your payment to ' . $config['name']);
break;
case 'subscr_signup':
try {
$unique_subscription_id = uniqid();
// save subscription record
$subscription = Model::factory('Subscription')->create();
$subscription->unique_id = $unique_subscription_id;
$subscription->paypal_subscription_id = post('subscr_id');
$subscription->name = $name;
$subscription->email = $email;
$subscription->address = $address;
$subscription->city = $city;
$subscription->state = $state;
$subscription->zip = $zip;
$subscription->country = $country;
$subscription->description = isset($item) ? $item->name : $description;
$subscription->price = post('amount3');
$subscription->billing_day = date('j', strtotime(post('subscr_date')));
$subscription->length = $config['subscription_length'];
$subscription->interval = $config['subscription_interval'];
$subscription->trial_days = $config['enable_trial'] ? $config['trial_days'] : null;
$subscription->status = 'Active';
$subscription->date_trial_ends = $config['enable_trial'] ? date('Y-m-d', strtotime('+' . $config['trial_days'] . ' days')) : null;
$subscription->save();
$trial = $subscription->date_trial_ends ? ' <span style="color:#999999;font-size:16px">(Billing starts after your ' . $config['trial_days'] . ' day free trial ends)</span>' : '';
$values = array(
'customer_name' => $name,
'customer_email' => $email,
'amount' => currency(post('amount3')) . '<small>' . currencySuffix() . '</small>' . $trial,
'description_title' => isset($item) ? 'Item' : 'Description',
'description' => isset($item) ? $item->name : $description,
'payment_method' => 'PayPal',
'subscription_id' => $subscription->paypal_subscription_id,
'manage_url' => url('manage.php?subscription_id=' . $unique_subscription_id)
);
email($config['email'], 'subscription-confirmation-admin', $values, 'You\'ve received a new recurring payment!');
email($email, 'subscription-confirmation-customer', $values, 'Thank you for your recurring payment to ' . $config['name']);
} catch (Exception $e) {
}
break;
case 'subscr_cancel':
$subscription = Model::factory('Subscription')->where('paypal_subscription_id', post('subscr_id'))->find_one();
if ( $subscription ) {
$subscription->status = 'Canceled';
$subscription->date_canceled = date('Y-m-d H:i:s');
$subscription->save();
// send subscription cancelation email now
$values = array(
'customer_name' => $subscription->name,
'customer_email' => $subscription->email,
'amount' => currency($subscription->price) . '<small>' . currencySuffix() . '</small>',
'description' => $subscription->description,
'payment_method' => 'PayPal',
'subscription_id' => $subscription->paypal_subscription_id
);
email($config['email'], 'subscription-canceled-admin', $values, 'A recurring payment has been canceled.');
email($subscription->email, 'subscription-canceled-customer', $values, 'Your recurring payment to ' . $config['name'] . ' has been canceled.');
}
break;
case 'subscr_eot':
$subscription = Model::factory('Subscription')->where('paypal_subscription_id', post('subscr_id'))->find_one();
if ( $subscription && $subscription->status == 'Active' ) {
$subscription->status = 'Expired';
$subscription->date_canceled = null;
$subscription->save();
}
break;
}
} else {
die();
}
} catch (Exception $e) {
die();
}
break;
/**************************************************** ****************************************************** **********************/
case 'paypal_success':
go('index.php#status=paypal_success');
break;
/**************************************************** ****************************************************** **********************/
case 'paypal_subscription_success':
go('index.php#status=paypal_subscription_success');
break;
/**************************************************** ****************************************************** **********************/
case 'paypal_cancel':
msg('You canceled your PayPal payment, no payment has been made.', 'warning');
go('index.php');
break;
/**************************************************** ****************************************************** **********************/
case 'delete_payment':
if ( isset($_GET['id']) ) {
$payment = Model::factory('Payment')->find_one($_GET['id']);
$payment->delete();
}
msg('Payment has been deleted successfully.', 'success');
go('admin.php#tab=payments');
break;
/**************************************************** ****************************************************** **********************/
case 'delete_subscription':
if ( isset($_GET['id']) ) {
$subscription = Model::factory('Subscription')->find_one($_GET['id']);
$subscription->delete();
}
msg('Subscription has been deleted successfully.', 'success');
go('admin.php#tab=subscriptions');
break;
/**************************************************** ****************************************************** **********************/
case 'create_invoice':
if ( post('email') && post('amount') && post('description') ) {
$unique_invoice_id = uniqid();
$invoice = Model::factory('Invoice')->create();
$invoice->unique_id = $unique_invoice_id;
$invoice->email = post('email');
$invoice->description = post('description');
$invoice->amount = post('amount');
$invoice->number = post('number');
$invoice->status = 'Unpaid';
$invoice->date_due = post('date_due') ? date('Y-m-d', strtotime(post('date_due'))) : null;
$invoice->save();
}
$number = $invoice->number ? $invoice->number : $invoice->id();
if ( post('send_email') && post('send_email') ) {
$values = array(
'number' => $number,
'amount' => currency($invoice->amount) . '<small>' . currencySuffix() . '</small>',
'description' => $invoice->description,
'date_due' => !is_null($invoice->date_due) ? date('F jS, Y', strtotime($invoice->date_due)) : '<em>no due date set</em>',
'url' => url('?invoice_id=' . $unique_invoice_id)
);
email($invoice->email, 'invoice', $values, 'Invoice from ' . $config['name']);
$msg = ' and sent';
}
msg('Invoice has been created' . (isset($msg) ? $msg : '') . ' successfully.', 'success');
go('admin.php#tab=invoices');
break;
/**************************************************** ****************************************************** **********************/
case 'delete_invoice':
if ( isset($_GET['id']) ) {
$invoice = Model::factory('Invoice')->find_one($_GET['id']);
$invoice->delete();
}
msg('Invoice has been deleted successfully.', 'success');
go('admin.php#tab=invoices');
break;
/**************************************************** ****************************************************** **********************/
case 'add_item':
if ( post('name') && post('price') ) {
$item = Model::factory('Item')->create();
$item->name = post('name');
$item->price = post('price');
$item->save();
}
msg('Item has been added successfully.', 'success');
go('admin.php#tab=items');
break;
/**************************************************** ****************************************************** **********************/
case 'edit_item':
if ( post('id') && post('name') && post('price') ) {
$item = Model::factory('Item')->find_one(post('id'));
$item->name = post('name');
$item->price = post('price');
$item->save();
}
msg('Item has been edited successfully.', 'success');
go('admin.php#tab=items');
break;
/**************************************************** ****************************************************** **********************/
case 'delete_item':
if ( isset($_GET['id']) ) {
$item = Model::factory('Item')->find_one($_GET['id']);
$item->delete();
}
msg('Item has been deleted successfully.', 'success');
go('admin.php#tab=items');
break;
/**************************************************** ****************************************************** **********************/
case 'save_config':
if ( post('config') && is_array(post('config')) ) {
foreach ( post('config') as $key => $value ) {
$config = Model::factory('Config')->where('key', $key)->find_one();
if ( $config ) {
$config->value = $value;
$config->save();
}
}
}
msg('Your settings have been saved successfully.', 'success');
go('admin.php#tab=settings');
break;
/**************************************************** ****************************************************** **********************/
case 'login':
if (
post('admin_username') && post('admin_username') == $config['admin_username'] &&
post('admin_password') && post('admin_password') == $config['admin_password']
) {
// login successful, set session
$_SESSION['admin_username'] = $config['admin_username'];
} else {
// login failed, set error message
msg('Login attempt failed, please try again.', 'danger');
}
go('admin.php');
break;
/**************************************************** ****************************************************** **********************/
case 'logout':
unset($_SESSION['admin_username']);
session_destroy();
session_start();
msg('You have been logged out successfully.', 'success');
go('admin.php');
break;
/**************************************************** ****************************************************** **********************/
case 'install':
$status = true;
$message = '';
try {
$db = new PDO('mysql:host=' . $config['db_host'] . ';dbname=' . $config['db_name'], $config['db_username'], $config['db_password']);
$sql = file_get_contents('lib/sql/install.sql');
$result = $db->exec($sql);
} catch (PDOException $e) {
$status = false;
$message = $e->getMessage();
}
$response = array(
'status' => $status,
'message' => $message
);
header('Content-Type: application/json');
die(json_encode($response));
break;
/**************************************************** ****************************************************** **********************/
}
}
API请求中有一个参数叫“custom”。 这就是您需要传入的数据，然后它将作为 $_POST['custom'] 在 IPN 中返回