php scrapping and outputting a specific value or number in a given tag

Question

so I\'m very new to php. But with some help, I\'ve figured out how to scrape a site if it has a tag identifier like h1 class=____

And even better, I\'ve figured out how

Answer 1

If you want to use third party library you can use https://github.com/rajanrx/php-scrape

setTargetXPath('//table[@id="currencies"]');
$configuration->setRowXPath('.//tbody/tr');
$configuration->setFields(
    [
        new \Scraper\Structure\TextField(
            [
                'name'  => 'Name',
                'xpath' => './/td[2]/a',
            ]
        ),
        new \Scraper\Structure\TextField(
            [
                'name'  => 'Market Cap',
                'xpath' => './/td[3]',
            ]
        ),
        new \Scraper\Structure\RegexField(
            [
                'name'  => '% Change',
                'xpath' => './/td[7]',
                'regex' => '/(.*)%/'
            ]
        ),
    ]
);

// Extract  data
$extractor = new MultipleRowExtractor($crawler, $configuration);
$data = $extractor->extract();
print_r($data);

will print out following:

Array
(
    [0] => Array
        (
            [Name] => Bitcoin
            [Market Cap] => $42,495,710,233
            [% Change] => -1.09
            [hash] => 76faae07da1d2f8c1209d86301d198b3
        )

    [1] => Array
        (
            [Name] => Ethereum
            [Market Cap] => $28,063,517,955
            [% Change] => -8.10
            [hash] => 18ade4435c69b5116acf0909e174b497
        )

    [2] => Array
        (
            [Name] => Ripple
            [Market Cap] => $11,483,663,781
            [% Change] => -2.73
            [hash] => 5bf61e4bb969c04d00944536e02d1e70
        )

    [3] => Array
        (
            [Name] => Litecoin
            [Market Cap] => $2,263,545,508
            [% Change] => -3.36
            [hash] => ea205770c30ddc9cbf267aa5c003933e
        )
   and so on ...

I hope that helps you :)

Disclaimer: I am author of this library.