phpscrapervsphp-spider
PHPScraper is a universal web-util for PHP. The main goal is to get stuff done instead of getting distracted with selectors, preparing & converting data structures, etc. Instead, you can just go to a website and get the relevant information for your project.
PHPScraper is a minimalistic scraper framework that is built on top of other popular scraping tools.
Features:
- Direct access to page basic features like: Meta data, Links, Images, Headings, Content, Keywords etc.
- File downloading.
- RSS, Sitemap and other feed processing.
- CSV, XML and JSON file processing.
php-spider is a PHP library for web crawling and scraping. It allows developers to easily navigate and extract data from websites by simulating a web browser's behavior.
- supports two traversal algorithms: breadth-first and depth-first
- supports crawl depth limiting, queue size limiting and max downloads limiting
- supports adding custom URI discovery logic, based on XPath, CSS selectors, or plain old PHP
- comes with a useful set of URI filters, such as Domain limiting
- supports custom URI filters, both prefetch (URI) and postfetch (Resource content)
- supports custom request handling logic
- supports Basic, Digest and NTLM HTTP authentication. See example.
- comes with a useful set of persistence handlers (memory, file)
- supports custom persistence handlers
- collects statistics about the crawl for reporting
- dispatches useful events, allowing developers to add even more custom behavior
- supports a politeness policy
This Spider does not support Javascript.
Example Use
```javascript
// create scraper object
$web = new \Spekulatius\PHPScraper\PHPScraper;
// go to URL
$web->go('https://test-pages.phpscraper.de/content/selectors.html');
// elements can be found using XPath:
echo $web->filter("//*[@id='by-id']")->text(); // "Content by ID"
// or pre-defined variables covering basic page data:
$web->links; // for all links
$web->headings;
$web->images;
$web->contentKeywords;
$web->orderedLists;
$web->unorderedLists;
$web->paragraphs;
$web->outline; // basic page outline
$web->cleanOutlineWithParagraphs; // basic page outline
```
```php
use Example\StatsHandler;
use VDB\Spider\Discoverer\XPathExpressionDiscoverer;
use Symfony\Contracts\EventDispatcher\Event;
use VDB\Spider\Event\SpiderEvents;
use VDB\Spider\Spider;
require_once('example_complex_bootstrap.php');
// Create Spider
$spider = new Spider('http://dmoztools.net');
// Add a URI discoverer. Without it, the spider does nothing. In this case, we want tags from a certain
$spider->getDiscovererSet()->set(new XPathExpressionDiscoverer("//div[@id='catalogs']//a"));
// Set some sane options for this example. In this case, we only get the first 10 items from the start page.
$spider->getDiscovererSet()->maxDepth = 1;
$spider->getQueueManager()->maxQueueSize = 10;
// Let's add something to enable us to stop the script
$spider->getDispatcher()->addListener(
SpiderEvents::SPIDER_CRAWL_USER_STOPPED,
function (Event $event) {
echo "\nCrawl aborted by user.\n";
exit();
}
);
// Add a listener to collect stats to the Spider and the QueueMananger.
// There are more components that dispatch events you can use.
$statsHandler = new StatsHandler();
$spider->getQueueManager()->getDispatcher()->addSubscriber($statsHandler);
$spider->getDispatcher()->addSubscriber($statsHandler);
// Execute crawl
$spider->crawl();
// Build a report
echo "\n ENQUEUED: " . count($statsHandler->getQueued());
echo "\n SKIPPED: " . count($statsHandler->getFiltered());
echo "\n FAILED: " . count($statsHandler->getFailed());
echo "\n PERSISTED: " . count($statsHandler->getPersisted());
// Finally we could do some processing on the downloaded resources
// In this example, we will echo the title of all resources
echo "\n\nDOWNLOADED RESOURCES: ";
foreach ($spider->getDownloader()->getPersistenceHandler() as $resource) {
echo "\n - " . $resource->getCrawler()->filterXpath('//title')->text();
}
```
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