Tag: simple-html-dom
Nabin Nepal (Starx) html-parsing php simple-html-dom
March 3, 2013

How to extract HTML tags from the web page generated at runtime

Question by shailbenq

shailbenqshailbenq

I am using a SimpleHTMLDOM parser to extract HTML data from web pages. But I came across websites such as www.coursera.com wherein the webpage is generated at runtime.

I need to know has anyone tried parsing such pages?

I am new to this field so some theory on this topic would help my understanding in parsing webpages.

Answer by Starx

StarxStarx

John Resig wrote an HTML Parser.

Demo: http://ejohn.org/blog/pure-javascript-html-parser/

This can workout for you.

Nabin Nepal (Starx) crawl html php simple-html-dom
May 29, 2012

How to get last li's anchor tag with simple dom html in php

Question by Ravi Kotwani

Ravi KotwaniRavi Kotwani

I am crawling a web with the help of simple dom in PHP.

I am getting following html with the help curl:

<ul><li>1</li><li>2</li><li>3</li><li><a href="http:abc.com">4</a></li></ul>

Now, I need to href (link) of anchor tag which is in the last li of this ul with the help of simple dom object. Please provide me syntax how can I do this?

I have tried with the following code but i am not able to find the last li…

require_once 'simple_html_dom.php';
        $html = "<ul><li>1</li><li>2</li><li>3</li><li><a href="http:abc.com">4</a></li></ul>";
        $oDocumentModel = new simple_html_dom();
        $oDocumentModel->load($html);
        $ul = $oDocumentModel->find('ul',0);

Answer by Sanjay

SanjaySanjay

You can loop through the li and convert it in array and find the last element. if you have smaller set of li like…

require_once 'simple_html_dom.php';
$html = "<ul><li>1</li><li>2</li><li>3</li><li><a href='http:abc.com'>4</a></li></ul>";
$oDocumentModel = new simple_html_dom();
$oDocumentModel->load($html);
$ul = $oDocumentModel->find('ul',0);

$items = array();
foreach( $ul->find('li') as $li ){
    $items[] = $li->plaintext;
}
$last = end($items);
print_r($last);

Or you can use lastChild() just go through the http://simplehtmldom.sourceforge.net/manual_api.htm

Answer by Starx

StarxStarx

You can extract the link this way.

$ul = $oDocumentModel->find('ul',0);
$a = $ul -> lastChild() -> find('a'. 0);
$href = $a -> href;
...

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