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Example code of phpdot/qrcode

Informations about the package qrcode

phpdot/qrcode

Coroutine-safe QR code generation for the PHPdot ecosystem. Encode any string to a QR symbol and render it as SVG (a pure string, no extension), PNG (GD), a raw module matrix, or an inline data: URI — through one immutable, injectable factory. Encoding is delegated to the battle-tested bacon/bacon-qr-code (numeric, alphanumeric, byte and Kanji modes, ECI, all four error-correction levels, versions 1–40, automatic masking); everything bacon touches is fenced behind a single Encoder, and the rest of the package — the value objects, the renderers, the fluent builder — is plain PHPdot code.

Table of Contents

Requirements

Requirement Constraint
PHP >= 8.5
ext-gd *
bacon/bacon-qr-code ^3.0

ext-gd is used only by the PNG renderer; SVG, the data URI, and the raw matrix need no extension.

Installation

Usage

One-call helpers

Inject QrCodeFactory and call a format helper — each encodes with sensible defaults and returns the bytes directly:

svg(), png(), and dataUri() cover the common cases; make() returns the encoded QrCode value object without rendering, and create() opens a fluent build for anything more.

The fluent builder

create() returns an immutable QrCodeBuilder — every setter returns a new builder, so a configured builder is a safe reusable template. Terminal methods (toSvg(), toPng(), toDataUri(), toMatrix(), encode()) produce the output:

Colors and options

Color is an immutable RGBA value object with channels validated to 0–255; RenderOptions carries the size (target square edge in pixels, default 300) and margin (quiet-zone width in modules, default 4):

Encoding and ECI

Byte-mode content defaults to UTF-8 with an ECI segment, the specification-correct way to signal a non-ISO-8859-1 charset. Most modern scanners read it fine; for legacy hardware scanners that cannot, disable it with eci(false). ASCII content (URLs, numbers) is unaffected.

Architecture

QrCodeFactory is the injected #[Singleton] entry point; it hands out immutable QrCodeBuilder instances. A build asks Encoder — the single boundary to bacon/bacon-qr-code — to produce a QrCode carrying an immutable Matrix, then passes that matrix plus RenderOptions to a RendererInterface. The SVG renderer is a pure string (non-blocking, the default); the PNG renderer is a CPU-bound GD raster; the data-URI renderer wraps either and base64-encodes the result.

Testing

The PNG renderer is covered by a pixel round-trip test: a symbol is rendered, its pixels are read back, the matrix is reconstructed, and it is asserted equal to the source — so a renderer that painted the wrong cells fails even though the encoder itself is trusted.

License

MIT — see LICENSE.

This repository is a read-only mirror. The canonical source lives in phpdot/monorepo; pull requests and issues are handled there: pulls · issues.

All versions of qrcode with dependencies

PHP Build Version
Package Version
Requires php Version >=8.5
ext-gd Version *
bacon/bacon-qr-code Version ^3.0
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