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Example code of baqend/spider

Informations about the package spider

PHP Spider

URL spider which crawls a page and all its subpages

Installation

Make sure you have Composer installed. Then execute:

composer require baqend/spider

This package requires at least PHP 5.5.9 and has no package dependencies!

Usage

The entry point is the Spider class. For it to work, it requires the following services:

You initialize the spider in the following way:

Processors

This package comes with the following built-in processors.

Processor

This is an aggregate processor which allows adding and removing other processors which it will execute one after the other.

HtmlProcessor

This processor can process HTML assets and enqueue its containing URLs. It will also modify all relative URLs and make them absolute. Also, if you provide a CssProcessor, style attributes are found and URLs within CSS will be resolved.

CssProcessor

This processor can process CSS assets and enqueue its containing URLs from @imports and url(...) statements.

ReplaceProcessor

Performs simple str_replace operations on asset contents:

The ReplaceProcessor does not enqueue other URLs.

StoreProcessor

Takes a URL prefix and a directory and will store all assets relative to the prefix in the according file structure in directory.

The StoreProcessor does not enqueue other URLs.

UrlRewriteProcessor

Changes the URL of an asset to another prefix. Use this to let CssProcessor resolve relative URLs from a different origin.

The UrlRewriteProcessor does not enqueue other URLs. Also, it does not modify the asset's content – only its URL.

URL Handlers

URL handlers tell the spider whether to download and process a URL. There are the following built-in URL handlers:

OriginUrlHandler

Handles only URLs coming from some given origin, i.e. "https://example.org".

BlacklistUrlHandler

Does not handle URLs being part of some blacklist. You can use glob patterns to provide a blacklist:

Alternatives

If this project does not match your needs, check the following other projects:

All versions of spider with dependencies

PHP Build Version
Package Version
Requires php Version >= 5.5.9
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