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Informations about the package php-scraper-engine

ScraperEngine

Scraper engine.

Installation

Through composer:

"require": {
    ...
    "graceas/php-scraper-engine": "v0.2.5"
    ...
}

Usage

include_once __DIR__.'/../vendor/autoload.php';

$scraper = new \ScraperEngine\Scraper(array(
    // prepare URLs
    new \ScraperEngine\Rules\PaginatorRequestBuilderRule(
        'index_pages', // store as
        array(), // usage from store
        array( // settings
            'categories' => array(
                'cat1/subcat1' => array(
                    'start_page' => 3,
                    'end_page'   => 5
                ),
                'cat1/subcat2' => array(
                    'start_page' => 3,
                    'end_page'   => 5
                ),
            ),
            'base_url' => 'https://www.example.com/{category}/?page={page}',
            'create_request_function' => function ($url) {
             return (new \ScraperEngine\Loader\Request\SimpleCurlRequestWrapper())
                 ->setUrl($url)
                 ->setMethod(SimpleCurlWrapper\SimpleCurlRequest::METHOD_GET)
                 ->setHeaders(array(
                     'accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3',
                     'accept-language: en-GB,en-US;q=0.9,en;q=0.8,ru;q=0.7',
                     'cache-control: no-cache',
                     'cookie: dfp_segment_test=47; dfp_segment_test_v3=17; dfp_segment_test_v4=62; dfp_segment_test_oa=2',
                     'pragma: no-cache',
                     'referer: https://www.example.com/',
                     'sec-fetch-mode: navigate',
                     'sec-fetch-site: same-origin',
                     'sec-fetch-user: ?1',
                     'upgrade-insecure-requests: 1',
                     'user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36',
                 ));
            }
        )
    ),
    // create requests and load
    new \ScraperEngine\Rules\LoadRequestsRule(
        'index_pages_responses', // store as
        array( // usage from store
            'index_pages'
        ),
        array( // settings
            'loader' => new \ScraperEngine\Loader\SimpleCurlLoaderWrapper(),
            'response_class' => '\ScraperEngine\Loader\Response\SimpleCurlResponseWrapper'
        )
    ),
    // parse responses content
    new \ScraperEngine\Rules\ParseResponsesRule(
        'index_pages_products',
        array(
            'index_pages_responses'
        ),
        array(
            'parser'       => new \ScraperEngine\Parser\HtmlToArrayParser(),
            'instructions' => file_get_contents('index_pages.xpath')
        )
    ),
    // format multi-dimesion array to single-dimension
    new \ScraperEngine\Rules\FormatResponsesRule(
        'index_pages_products_formatted_flatted',
        array(
            'index_pages_products'
        ),
        array(
            'formatter' => new \ScraperEngine\Formatter\ArrayToFlatArrayFormatter()
        )
    ),
    // format every array item to json
    new \ScraperEngine\Rules\FormatResponsesRule(
        'index_pages_products_formatted_json',
        array(
            'index_pages_products_formatted_flatted'
        ),
        array(
            'formatter' => new \ScraperEngine\Formatter\ArrayToJsonFormatter(array(
                \ScraperEngine\Formatter\ArrayToJsonFormatter::OPTION_SPLIT_ARRAY_TO_SINGLE_ELEMENTS => true,
            ))
        )
    ),
    // store every item
    new \ScraperEngine\Rules\StoreDataRule(
        '',
        array(
            'index_pages_products_formatted_json'
        ),
        array(
            'storage' => new \ScraperEngine\Storage\FileStorage('results')
        )
    ),
));

$scraper->execute();

index_pages.xpath content

;; => query('//table[contains(@class, "ad_id")]') || null
title => current -> query('.//td[contains(@class, "title-cell")]/div/h3') -> item('0') -> __get('nodeValue') || null
category => current -> query('.//td[contains(@class, "title-cell")]/div/p') -> item('0') -> __get('nodeValue') || null
product_id => current -> getAttribute('data-id') || null

All versions of php-scraper-engine with dependencies

PHP Build Version
Package Version
Requires php Version >=5.5.9
graceas/php-simple-logger Version v1.1.5
graceas/php-simple-curl-wrapper Version v1.5.4
graceas/php-html-parser Version v1.2
ext-json Version *
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