[WordPress] 外掛分享： ifthenpay | Payments for FluentForms

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原文外掛簡介

This plugin integrates the ifthenpay payment gateway with FluentForms to enable seamless payment collection directly from your forms.
Payments are processed through a secure pay-by-link system, ensuring that no sensitive card or banking data is stored on your website.
After form submission, users are redirected to a secure ifthenpay payment page where they complete the transaction. ifthenpay then sends a server-side callback to automatically update the payment status inside FluentForms.
In plain terms you get:

One-time payments directly from FluentForms
Secure automatic payment confirmations
Payment status synchronization inside FluentForms
Support for cards, wallets, transfers, and local payment methods
Merchant backoffice management on web and mobile
No card numbers stored on your website

All settings are configured directly in FluentForms and the ifthenpay Backoffice.
The plugin is designed so site owners can manage payments without requiring deep technical knowledge.
Key Features

Full integration with FluentForms payment fields
Secure transactions via ifthenpay pay-by-link
Automatic payment confirmation through callbacks
Multiple payment methods support:

Multibanco
MB WAY
Payshop
Credit Card
Cofidis
Google Pay
Apple Pay
Pix

Real-time payment status updates
Support for coupons and automatic totals
Multi-language support (EN, ES, FR, PT)
Security-first approach — no sensitive payment data stored
HTTPS-only communication with ifthenpay APIs

Requirements

An active ifthenpay merchant account.
A FluentForms Gateway Key (request this from ifthenpay support/helpdesk).
FluentForms installed and activated.
Payment methods enabled in your ifthenpay Gateway Key.
WordPress 6.5+.
PHP 8.2+.
HTTPS (SSL) enabled.

External Services
This plugin connects to ifthenpay to generate payment links and validate transactions.
ifthenpay is a third-party payment provider supporting cards, wallets, and local payment methods.
FluentForms
FluentForms is the form builder used to create forms and collect payment information.
This plugin extends FluentForms by adding ifthenpay payment processing.
ifthenpay Backoffice & API
The ifthenpay Backoffice is used to configure merchant settings and payment methods.
The plugin communicates with ifthenpay APIs to create payment links and confirm transactions.
Data sent during setup:

Backoffice Key
Gateway Key

Data sent during payment processing:

Transaction ID
Amount
Description
Enabled payment methods
Return URLs
Language
Optional customer email
Optional customer name
Optional form fields

Callback data received:

Payment status
Transaction ID
Payment method

All communication happens server-side over HTTPS.
No raw card or bank details are stored.
License
This plugin is licensed under the GPLv3.
Support
For assistance use the WordPress.org support forum:
Support Forums

Pre-checks before posting:

Payment method enabled on Gateway Key
Gateway Key connected correctly
Current recommended versions of WordPress, PHP, and FluentForms installed

Commercial helpdesk available:
https://helpdesk.ifthenpay.com/
ifthenpay support:
[email protected]
FluentForms documentation:
https://fluentforms.com/docs/