README

A simple, extensible page analyzer written in PHP.

Analyzes HTML markup and extracts common attributes such as

• Meta Tags including OpenGraph tags, Twitter Cards etc
• JSON-LD
• Apple Icons / favicon
• Canonical references
• Response headers
• RSS / XML feeds (link alternative)

Easily extensible by adding your own custom analyzers.

Installation

composer require chrisshennan/page-analyzer dev-master

Basic Usage

Analyze a live page

Set the list of analyzers when creating the PageAnalyzer.

$loader = require __DIR__.'/vendor/autoload.php';

$url ='https://shoutabout.it';

$analyzerFactory = new \Cas\PageAnalyzer\Factory\AnalyzerFactory();
$analyzerFactory->addAnalyzerReference('\Cas\PageAnalyzer\Analyzer\MetaData');
$analyzerFactory->addAnalyzerReference('\Cas\PageAnalyzer\Analyzer\Logo');

$analyzerManager = $analyzerFactory->createManager();
$analysisCollection = $analyzerManager->analyze($url)->getAnalysis();

$data = [];

foreach ($analysisCollection as $analyzer => $analysis) {
    $data[$analyzer] = $analysis->getData();
}

...

Custom Analyzers

Create the new analyzer class

namespace App\Analyzer;

use Cas\PageAnalyzer\Analyzer\BaseAnalyzer;

class MyCustomAnalyzer extends BaseAnalyzer
{
    public function analyze(string $content) : array
    {
        ...
    }
}

Add the analyzers to the list of analyzers

$loader = require __DIR__.'/vendor/autoload.php';

$url ='https://shoutabout.it';

$analyzerFactory = new \Cas\PageAnalyzer\Factory\AnalyzerFactory();
$analyzerFactory->addAnalyzerReference('\Cas\PageAnalyzer\Analyzer\MetaData');
$analyzerFactory->addAnalyzerReference('\Cas\PageAnalyzer\Analyzer\Logo');
$analyzerFactory->addAnalyzerReference('\App\Analyzer\MyCustomAnalyzer');

$analyzerManager = $analyzerFactory->createManager();
$analysisCollection = $analyzerManager->analyze($url)->getAnalysis();

$data = [];

foreach ($analysisCollection as $analyzer => $analysis) {
    $data[$analyzer] = $analysis->getData();
}

...