PHP code example of duzun / hquery

1. Go to this page and download the library: Download duzun/hquery library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

duzun / hquery example snippets


// Optionally use namespaces
use duzun\hQuery;

// Either use composer, or a writable folder
// If not set, hQuery::fromURL() would make a new request on each call
hQuery::$cache_path = "/path/to/cache";

// Time to keep request data in cache, seconds
// A value of 0 disables cache
hQuery::$cache_expires = 3600; // default one hour


// Local
$doc = hQuery::fromFile('/path/to/filesystem/doc.html');

// Remote
$doc = hQuery::fromFile('https://example.com/', false, $context);


$doc = hQuery::fromHTML('<html><head><title>Sample HTML Doc</title><body>Contents...</body></html>');

// Set base_url, in case the document is loaded from local source.
// Note: The base_url property is used to retrieve absolute URLs from relative ones.
$doc->base_url = 'http://desired-host.net/path';


use duzun\hQuery;

// GET the document
$doc = hQuery::fromUrl('http://example.com/someDoc.html', ['Accept' => 'text/html,application/xhtml+xml;q=0.9,*/*;q=0.8']);

var_dump($doc->headers); // See response headers
var_dump(hQuery::$last_http_result); // See response details of last request

// with POST
$doc = hQuery::fromUrl(
    'http://example.com/someDoc.html', // url
    ['Accept' => 'text/html,application/xhtml+xml;q=0.9,*/*;q=0.8'], // headers
    ['username' => 'Me', 'fullname' => 'Just Me'], // request body - could be a string as well
    ['method' => 'POST', 'timeout' => 7, 'redirect' => 7, 'decode' => 'gzip'] // options
);


use duzun\hQuery;

use Http\Discovery\HttpClientDiscovery;
use Http\Discovery\MessageFactoryDiscovery;

$client = HttpClientDiscovery::find();
$messageFactory = MessageFactoryDiscovery::find();

$request = $messageFactory->createRequest(
  'GET',
  'http://example.com/someDoc.html',
  ['Accept' => 'text/html,application/xhtml+xml;q=0.9,*/*;q=0.8']
);

$response = $client->sendRequest($request);

$doc = hQuery::fromHTML($response, $request->getUri());


// Find all banners (images inside anchors)
$banners = $doc->find('a[href] > img[src]:parent');

// Extract links and images
$links  = array();
$images = array();
$titles = array();

// If the result of find() is not empty
// $banners is a collection of elements (hQuery\Element)
if ( $banners ) {

    // Iterate over the result
    foreach($banners as $pos => $a) {
        // $a->href property is the resolved $a->attr('href') relative to the
        // documents <base href=...>, if present, or $doc->baseURL.
        $links[$pos] = $a->href; // get absolute URL from href property
        $titles[$pos] = trim($a->text()); // strip all HTML tags and leave just text

        // Filter the result
        if ( !$a->hasClass('logo') ) {
            // $a->style property is the parsed $a->attr('style'), same as $a->attr('style', true)
            if ( strtolower($a->style['position']) == 'fixed' ) continue;

            $img = $a->find('img')[0]; // ArrayAccess
            if ( $img ) $images[$pos] = $img->src; // short for $img->attr('src', true)
        }
    }

    // If at least one element has the class .home
    if ( $banners->hasClass('home') ) {
        echo 'There is .home button!', PHP_EOL;

        // ArrayAccess for elements and properties.
        if ( $banners[0]['href'] == '/' ) {
            echo 'And it is the first one!';
        }
    }
}

// Read charset of the original document (internally it is converted to UTF-8)
$charset = $doc->charset;

// Get the size of the document ( strlen($html) )
$size = $doc->size;

// The URL at which the document was requested
$requestUri = $doc->href;

// <base href=...>, if present, or the origin + dir path part from $doc->href.
// The .href and .src props are resolved using this value.
$baseURL = $doc->baseURL;

sh
composer

sh
cd hQuery.php/examples
php -S localhost:8000

# open browser http://localhost:8000/