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Example code of zrashwani/arachnid

Informations about the package arachnid

Arachnid Web Crawler

This library will crawl all unique internal links found on a given website up to a specified maximum page depth.

This library is using symfony/panther & FriendsOfPHP/Goutte libraries to scrap site pages and extract main SEO-related info, including: title, h1 elements, h2 elements, statusCode, contentType, meta description, meta keyword and canonicalLink.

This library is based on the original blog post by Zeid Rashwani here:

http://zrashwani.com/simple-web-spider-php-goutte

Josh Lockhart adapted the original blog post's code (with permission) for Composer and Packagist and updated the syntax to conform with the PSR-2 coding standard.

Build Status codecov

Sponsored By

How to Install

You can install this library with Composer. Drop this into your composer.json manifest file:

{
    "require": {
        "zrashwani/arachnid": "dev-master"
    }
}

Then run composer install.

Getting Started

Basic Usage:

Here's a quick demo to crawl a website:

Enabling Headless Browser mode:

Headless browser mode can be enabled, so it will use Chrome engine in the background which is useful to get contents of JavaScript-based sites.

enableHeadlessBrowserMode method set the scraping adapter used to be PantherChromeAdapter which is based on Symfony Panther library:

In order to use this, you need to have chrome-driver installed on your machine, you can use dbrekelmans/browser-driver-installer to install chromedriver locally:

Advanced Usage:

Set additional options to underlying http client, by specifying array of options in constructor or creating Http client scrapper with desired options:

You can inject a PSR-3 compliant logger object to monitor crawler activity (like Monolog):

You can set crawler to visit only pages with specific criteria by specifying callback closure using filterLinks method:

You can use LinksCollection class to get simple statistics about the links, as following:

How to Contribute

  1. Fork this repository
  2. Create a new branch for each feature or improvement
  3. Apply your code changes along with corresponding unit test
  4. Send a pull request from each feature branch

It is very important to separate new features or improvements into separate feature branches, and to send a pull request for each branch. This allows me to review and pull in new features or improvements individually.

All pull requests must adhere to the PSR-2 standard.

System Requirements

Authors

License

MIT Public License

All versions of arachnid with dependencies

PHP Build Version
Package Version
Requires php Version >=7.2.0
ext-spl Version *
tightenco/collect Version ^v8.34
guzzlehttp/psr7 Version ^1.4
symfony/panther Version ^1.0
fabpot/goutte Version ^4.0
psr/log Version ^1.1
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