PHP从html文本中获取<h [1-6]> </ h [1-6]>值

Question

On my code I have the follwoing regexp:

 preg_match_all('/<title>([^>]*)<\/title>/si', $contents, $match );

That retrieves the <h>..</h> tags from a webpage. But sometimes it may have html tags such as <strong>,<b> etc etc therefore It needs some modification therefore I tried this one

preg_match_all('/<h[1-6]>(.*)<\/h[1-6]>/si', $contents, $match );

But something wrong and does not retrieve the content that is in html <h> tags.

Can you help me to modify correctly the regexp?

Answer 1

preg_match_all('<h\d>', $contents, $matches);

foreach($matches as $match){
$num[] = substr ( $match  , 1 , 1 );
}