Three captcha types
Click, rotate and slider interactions, with random switching plus configurable difficulty and tolerance.
Captcha / Poster / PHP + Rust
Captcha and postersin one package
Three captcha types and fourteen poster elements, rendered in pure PHP, with one API across six frameworks.
One core for captcha and posters
poster-php puts click, rotate and slider verification and chained poster generation in one package. Images and answers are generated in PHP, with no third-party service.
Fourteen poster elements cover text, images, QR codes, tables, charts and calendars. Switch image drivers between GD and ImageMagick, and store captcha state in File, Session, Redis or PSR-16.
- Click / rotate / slider
- 14 poster elements
- GD / ImageMagick
3Captcha types
14Poster elements
6Framework adapters
Posty
A mascot made of a poster body with captcha gear: a QR card in the left hand and a slider puzzle in the right.
Rendering and checks, both mine.From human checks to a full poster
Generate, verify and render in one package.
Fourteen poster elements
Text, images, QR codes, tables, charts, calendars and more, layered in a chain.
Pure PHP QR codes
A built-in Model 2 encoder supporting versions 1 to 40 and L/M/Q/H error correction.
Template rendering
JSON templates with variable substitution; builders can be exported and imported.
Six framework adapters
Laravel, ThinkPHP, Webman, Hyperf, Yii2 and Yii3 share the same core.
Verification security
One-time checks, brute-force protection, expiry, session rate limits and optional trajectory checks.
Same capability, Rust version
Use the Rust implementation alongside the PHP package.
Rust
v2.0.0
poster-rust
Captcha and posters for Rust
Brings three captcha types and fourteen poster elements to Rust, with a pure Rust image stack.
- Three captcha types
- 14 poster elements
- 8 framework integrations
How the features grew
Every release maps to real commits.
v1.4.3
Driver fixes and i18n sync
Fixed alpha channels in Imagick masks and circular crops, and synced docs across 13 languages.
v1.4.1
Slider jigsaw support
Added the jigsaw shape with random tabs on all four sides, sharing one outline for gap and piece.
v1.4.0
Yii2 and Yii3 adapters
Added adapters for both Yii frameworks, keeping core behavior consistent across six frameworks.
v1.3.1
Native entry and hardening
Landed native.php, a rewritten QR encoder, session rate limits and trajectory checks.
Architecture and design
Click an image to enlarge.
Install and use
Install it, then run a minimal example.
Install
composer require erikwang2013/poster-phpMinimal example
$result = captcha_create('click');
$pass = captcha_verify($result['key'], 'click', [[120, 80], [200, 150], [310, 95]]);
$builder = poster_create(750, 1334);
$builder->background('#FFFFFF');
$builder->addText('新品首发', ['x' => 80, 'y' => 120, 'size' => 48, 'color' => '#333333']);
$builder->save('/output/poster.jpg', 90);Install
cargo add poster-rustMinimal example
use poster::captcha::{Answer, CaptchaManager};
use poster::PosterBuilder;
let manager = CaptchaManager::new()?;
let result = manager.create(Some("click"))?.generate()?;
let pass = manager.verify(&result.key, Answer::Click(vec![(120.0, 80.0)]))?;
let mut builder = PosterBuilder::new()?;
builder.background("#FFFFFF");
builder.save("/output/poster.jpg", None)?;Twelve faces of Posty
Hover and the mood changes.