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Vendor knusperleicht
Package eps-bank-transfer
Short Description PSA e-payment standard (EPS) implementation for PHP
License Apache-2.0
Homepage https://github.com/knusperleicht/eps-bank-transfer

Keywords payments bank transfer eps stuzza

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Informations about the package eps-bank-transfer

EPS Bank Transfer (knusperleicht/eps-bank-transfer)

A PHP library for integrating the Austrian EPS bank transfer (PSA, specification v2.6, with preparation for v2.7). It helps you start EPS payments, handle the confirmation (callback/return), and trigger refunds (full or partial). Note on origins: This project was initially based on hakito/php-stuzza-eps-banktransfer. The codebase was rewritten but has the same core functionality. Credit to the original authors for the concept and initial implementation.

Links:

Original code: https://github.com/hakito/PHP-Stuzza-EPS-BankTransfer
Specification/Info: https://www.eps-ueberweisung.at/

Installation

Install via Composer:

What is this library for?

Start an EPS payment: Create a payment request and redirect customers to the bank list/bank.
Receive confirmation (return/callback): Verify the transaction status and update your order.
Refund: Trigger a full or partial refund.

The library wraps the required requests/responses generated from the official XSD schemas and provides PSR-compatible HTTP communication.

Quick start

Check the examples in the samples/ folder:

samples/eps_start.php – Start a payment (fetch bank list, initialize payment)
samples/eps_confirm.php – Process the confirmation callback
samples/eps_refund.php – Trigger a refund

Basic configuration (Test/Live)

The SoCommunicator provides endpoint URLs as constants: TEST_MODE_URL for test environments and LIVE_MODE_URL for production usage. Choose the appropriate URL for your environment.

Example:

Typical flow

Get bank list (optional): Show available banks to the user.
Start payment: Create the start request with amount, currency, order ID, and return URLs.
User is redirected to the bank/e-banking.
Process callback/return: Validate status, amount, order ID; update your order status.
Optional: Perform a refund.

The examples under samples/ demonstrate this end-to-end flow.

Security and limitations

XML signatures/certificates: Not supported at the moment. Make sure your confirmation URL is hard to guess (e.g., unique tokens per transaction).
TLS/verification: Keep certificate verification enabled (['verify' => true]).
Idempotency: Implement idempotent handling for callbacks and refunds.

Generated classes from XSD (background & generation)

Requests/responses are generated from the official XSD schemas. This ensures type safety and compatibility with the EPS standard. If schemas change or you need adjustments, you can regenerate the PHP classes:

xsd2php.yaml contains the mapping configuration.
Schemas live under resources/schemas.
Generated classes are placed under src/Internal/Generated/... namespaces and used by the serializer.

Tests

PHPUnit is configured. Run:

License

Apache-2.0 – see LICENSE.

Credits

Project initially started by @hakito: https://github.com/hakito/PHP-Stuzza-EPS-BankTransfer

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Package Version

Version v1.3.2 Release 20. Apr 2026
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Requires php Version >=7.3.0
psr/http-client Version ^1.0
psr/http-message Version ^2.0
psr/http-factory Version ^1.0
ext-simplexml Version *
ext-dom Version *
ext-libxml Version *
jms/serializer Version ^3.24
symfony/yaml Version ^5.4 || ^6.0

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