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Example code of qrid/codec

Informations about the package codec

qrid/codec — PHP

PHP library for encoding and decoding MergeID electronic invoice QR codes.

MergeID QR codes embed invoice identity information (company, tax ID, contact, address) as a base64-encoded JSON payload. This library handles the encode/decode round-trip and, optionally, SVG QR image generation.

Typical usage flow

Installation

Usage

Decode

Pass the raw string value scanned from a QR code:

decodeQRId trims surrounding whitespace from the input before decoding, so strings copied with accidental padding are handled transparently.

Exceptions thrown:

Exception Cause
InvalidArgumentException Input is not valid base64
JsonException Decoded bytes are not valid JSON

Encode (requires chillerlan/php-qrcode)

Produce an SVG QR code from invoice identity fields:

activityCode is optional and defaults to '' (blank). A blank activity code signals a consuming system to generate an electronic ticket instead of using an activity code.

Exceptions thrown:

Exception Cause
RuntimeException chillerlan/php-qrcode is not installed
JsonException JSON encoding of the payload failed (should not occur in practice)

Payload format

The QR code data is a UTF-8 JSON object encoded as standard base64 (no line-breaks):

Field Type Description
v int Payload schema version. Currently always 1.
id string Tax / company registration ID.
company string Legal company name (UTF-8, including accented characters).
email string Primary billing or contact e-mail address.
address string Physical address of the company.
activity_code string Installation or activity code that links the QR to an internal record. May be blank (""), which signals a consuming system to generate an electronic ticket instead.

Requirements

Dependency Version Required for
PHP >= 8.1 Always
chillerlan/php-qrcode ^5.0 encodeQRId() only

Running tests

Tests cover field decoding, UTF-8 handling, whitespace trimming, error paths, and (when chillerlan/php-qrcode is available) the full encode-decode round-trip.

Publishing

New versions reach Packagist automatically — there is no build/upload step:

  1. Bump the version in the VERSION file (repo root) and merge to main.
  2. release.yml runs on every push to main. It reads VERSION; if no vX.Y.Z tag already exists for it, it runs PHPUnit across PHP 8.2–8.4 (PHPUnit 11's minimum, even though the library itself supports PHP >= 8.1) and creates that tag plus a GitHub Release.
  3. Packagist's webhook on this repository picks up the new tag and republishes it within moments. Composer installs straight from the tagged GitHub source (via dist/zipball), so — unlike PyPI or npm — there's no artifact to build/upload and no OIDC/trusted-publisher concept to configure.

composer.json intentionally has no version field: Composer/Packagist derive the version purely from git tags, and a hardcoded field risks drifting out of sync with the actual tag. VERSION exists only so the release workflow has something to read.

Pushes to main that don't change VERSION are a no-op (the tag already exists), so unrelated commits (docs, CI tweaks) don't trigger a release.

License

MIT

All versions of codec with dependencies

PHP Build Version
Package Version
Requires php Version >=8.1
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