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Vendor jidaikobo
Package a11yc
Short Description Static accessibility checker core for A11YC
License MIT

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Informations about the package a11yc

a11yc

a11yc is the core accessibility checking library extracted from A11YC.

This package is a PHP library, not the old standalone web application. It provides HTML and URL analysis APIs that can be embedded in other applications such as the standalone UI layer or the jwp-a11y WordPress plugin.

Requirements

PHP 8.3 or later
Composer

Installation

If you are working on this repository directly:

Compiled Resources

Runtime resource loading now expects precompiled PHP arrays in resources/compiled/.

The distributed package should include:

resources/compiled/ja.php
resources/compiled/en.php

When you change resource source files under resources/, rebuild the compiled files before committing or packaging:

This command regenerates the compiled PHP arrays from the YAML source files.

At runtime, a11yc uses the compiled files first. If they are missing, the library raises an error unless YAML fallback is explicitly enabled for development.

Development-Only YAML Fallback

For local development only, you can allow direct YAML loading with a Git-ignored config.development.php file in the package root:

This file is not intended for distribution. In normal packaged environments, keep compiled resources available and do not rely on YAML fallback.

What This Package Does

Fetch and analyze a page by URL
Analyze already-available HTML
Return normalized issue lists and summary counts
Extract image metadata used by the analyzer
Load WCAG-related resources from bundled YAML files

Basic Usage

Analyze a URL

Analyze HTML

Result Format

Analyzer::analyzeUrl() and Analyzer::analyzeHtml() return an array with these top-level keys:

meta
summary
issues
images

`meta`

url: analyzed URL
requested_url: original requested URL (only for analyzeUrl())
exists: whether fetching succeeded (only for analyzeUrl())
user_agent: effective user agent string
version: A11YC_VERSION if defined
check_count: number of executed checks
analyzed_at: ISO 8601 timestamp

`summary`

error_count
notice_count
counts_by_level

counts_by_level contains:

a
aa
aaa

`issues`

Each issue is normalized into a flat array:

id
type (error or notice)
message
level
criterion_keys
place_id
snippet

`images`

When include_images is enabled, image data includes:

element
src
alt
href
is_important
aria

Available Options

Both Analyzer::analyzeUrl() and Analyzer::analyzeHtml() accept an options array.

url: base URL for analysis (analyzeHtml() only; default about:blank)
user_agent: user agent used for fetching HTML/CSS
checks: array of check class names to run; omitted means all available checks
is_partial: skip full-document assumptions for partial HTML analysis
do_link_check: enable slower link validation checks
do_css_check: enable CSS fetching and CSS-related checks
include_images: include extracted image data in the result

Lower-Level API

If you need the raw validation result set before normalization:

The normalized API via Analyzer is recommended for new integrations.

License

MIT

All versions of a11yc with dependencies

PHP Build Version

Package Version

Version 7.2.3 Release 05. Aug 2026
create-project require 0 people chose require and
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Requires php Version >=8.3
guzzlehttp/guzzle Version ^7.15.2
symfony/polyfill-intl-idn Version ^1.38.1

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