PHP Class Essence\Crawler

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Protected Properties

Property	Type	Description
$_Collection	Essence\Provider\Collection	A collection of providers.
$_Dom	Essence\Dom\Document\Factory\Native	DOM parser.
$_attributes

Public Methods

Method	Description
__construct ( Collection $Collection, Native $Dom )	Constructor.
crawl ( string $html ) : array	Extracts embeddable URLs from an HTML source.

Protected Methods

Method	Description
_extractUrls ( Document $Document ) : array	Extracts URLs from the given DOM document.
_extractUrlsFromtags ( Document $Document, string $tag, string $attribute ) : array	Extracts URLs from tag attributes.
_filterUrls ( array $urls ) : array	Filters the given URLs to return only the extractable ones.

Method Details

__construct() public method

Constructor.

public __construct ( Collection $Collection, Native $Dom )
$Collection	Essence\Provider\Collection	Providers collection.
$Dom	Essence\Dom\Document\Factory\Native	DOM parser.

_extractUrls() protected method

Extracts URLs from the given DOM document.

protected _extractUrls ( Document $Document ) : array
$Document	Essence\Dom\Document	Document.
return	array	URLs.

_extractUrlsFromtags() protected method

Extracts URLs from tag attributes.

protected _extractUrlsFromtags ( Document $Document, string $tag, string $attribute ) : array
$Document	Essence\Dom\Document	Document.
$tag	string	Tag name.
$attribute	string	Attribute name.
return	array	URLs.

_filterUrls() protected method

Filters the given URLs to return only the extractable ones.

protected _filterUrls ( array $urls ) : array
$urls	array	URLs to filter.
return	array	Filtered URLs.

crawl() public method

Extracts embeddable URLs from an HTML source.

public crawl ( string $html ) : array
$html	string	The HTML source to be extracted.
return	array	An array of extracted URLs.

Property Details

$_Collection protected property

A collection of providers.

protected Collection,Essence\Provider $_Collection
return	Essence\Provider\Collection

$_Dom protected property

DOM parser.

protected Native,Essence\Dom\Document\Factory $_Dom
return	Essence\Dom\Document\Factory\Native

$_attributes protected property

protected $_attributes