willwashburn/canonical

return the canonical url from a string of html

Canonical :church:

Return the canonical url from a string of html, _(*1)

Usage

```PHP $canonical = new \Canonical\Canonical;, <sub>(*2)</sub>

// using some string of html fetched via curl or file get contents or carrier pigeon $html = file_get_contents('website.html');, <sub>(*3)</sub>

$canonical->url($html); //// http://www.yourlink.com ```, <sub>(*4)</sub>

Installation

Use composer, <sub>(*5)</sub>

composer require willwashburn/canonical, <sub>(*6)</sub>

Alternatively, add "willwashburn/canonical": "~3.1" to your composer.json, <sub>(*7)</sub>

Change Log

• v3.1.3 - Improve regex to match window.location =
• v3.1.2 - Loosen dom crawler class requirements
• v3.1.1 - Remove Javascript redirects from default extractors
• v3.1.0 - Use more consistent naming for extractor class; drop nightly support
• v3.0.0 - Parse Javascript redirects similar to http-refresh tags
• v2.1.1 - Fix bug when calling same html twice with same instance of canonical
• v2.1.0 - Allow accessing url with utm params and hash anchors in return object
• v2.0.0 - Parse http-refresh tags; New namespace; New return object
• v1.2.1 - Favor canonical tag over og:url tag
• v1.2.0 - Remove utm params and hash anchors
• v1.1.0 - Search for twitter:url meta tags if no others are found
• v1.0.2 - Fix support for php 5.4
• v1.0.1 - Clear crawler before use
• v1.0.0 - Basic tag finding for og:link and link rel=canonical using symfony dom crawler