php - Get the first image in a page with class foo

Question

I'm trying to get the first image with specific class from page by php

<?php
$document = new DOMDocument();
@$document->loadHTML(file_get_contents('http://www.cbsnews.com/8301-501465_162-57471379-501465/first-picture-on-the-internet-turns-20/'));
$lst = $document->getElementsByTagName('img');

for ($i=0; $i<$lst->length; $i++) {
    $image = $lst->item($i);
    echo $image->attributes->getNamedItem('src')->value, '<br />';
}
?>

this code get all images from the page, i'm trying now to get the images with class "cnet-image" from this page

Answer 1

You should be able to do what you need to with Simple HTML Dom, give it a try, I've used it for several similar things including image crawlers. http://simplehtmldom.sourceforge.net/

It looks like you should be able to use the following for what you need.

// Create DOM from URL or file
$html = file_get_html('http://www.google.com/');

$ret = $html->find('img[class=foo]');