Simple HTML DOM getting all attributes from a tag

Answer 1

To grab all those attributes, you should before investigate the parsed element, like this:

foreach($html->find('div[class=bar] a') as $a){
  var_dump($a->attr);
}

...and see if those attributes exist. They don't seem to be valid HTML, so maybe the parser discards them.

If they exist, you can read them like this:

foreach($html->find('div[class=bar] a') as $a){
  $article = array($a->href, $a->innertext);
  if (isset($a->attr['data1'])) {
    $article['data1'] = $a->attr['data1'];
  }
  if (isset($a->attr['data2'])) {
    $article['data2'] = $a->attr['data2'];
  }
  //...
  $articles[] = $article;
}

To get both classes you can use a multiple selector, separated by a comma:

foreach($html->find('div[class=bar] a, div[class=bar2] a') as $a){
...