PHP

Getting Started Spidering a Site

See more Spider Examples

This is a very simple "getting started" example for spidering a web site. As you'll see in future examples, the Chilkat Spider library can be used to crawl the Web. For now, we'll concentrate on spidering a single site. Chilkat2 PHP

<?php

use Chilkat2\Spider;

$success = false;

$spider = new Spider();

// The spider object crawls a single web site at a time.  As you'll see
// in later examples, you can collect outbound links and use them to
// crawl the web.  For now, we'll simply spider 10 pages of chilkatsoft.com
$spider->Initialize('www.chilkatsoft.com');

// Add the 1st URL:
$spider->AddUnspidered('http://www.chilkatsoft.com/');

// Begin crawling the site by calling CrawlNext repeatedly.
for ($i = 0; $i <= 9; $i++) {
    $success = $spider->CrawlNext();
    if ($success) {
        // Show the URL of the page just spidered.
        echo $spider->LastUrl, "\n";
        // The HTML is available in the LastHtml property
    } else {
        // Did we get an error or are there no more URLs to crawl?
        if ($spider->NumUnspidered == 0) {
            echo "No more URLs to spider\n";
        } else {
            echo $spider->LastErrorText, "\n";
        }
    }

    // Sleep 1 second before spidering the next URL.
    $spider->SleepMs(1000);
}