PHP way of parsing HTML string

$received_str = 'Your received html';

$html = str_get_html($received_str);

//Image tag
$img_tag = $html->find("img", 0)->outertext;

//Example Text
$example_text = $html->find('div[style=example]', 0)->last_child()->innertext;

See Here: http://simplehtmldom.sourceforge.net/manual.htm

Try Simple HTML Dom Parser

// Create DOM from HTML string
$html = str_get_html('Your HTML here');

// Find all images 
foreach($html->find('img') as $element) 
       echo $element->src . '<br>';

// Description
$description = $html->find('div[style=example]');