regex, detecting specific urls, help please

[cjm771]

I used this function to grab [b]link[/b] and the[b] text[/b] the url surrounds from <a href=''></a> html code in a given html page. Now I want to edit the function but restrict the links to mp3, wav, and sound files only if mp3search==true. My code right now finds the mp3s [b]link[/b] but it[u] doesnt [/u]find the right [b]text [/b](stuff between the href tags). Here is the function I used:


[code]function remove_html(&$item, $key)
{
  $item=trim(strip_tags($item));
}

function get_links($url, $mp3search) {
if ($mp3search==false)
$preg =
"/a[\s]+[^>]*?class=l[\s]+[^>]*?href[\s]?=[\s\"\']+(.*?)[\"\']+.*?>"."([^<]+|.*?)?<\/a>/";
else
$preg =
"/a[\s]+[^>]*?href[\s]?=[\s\"\']+(.*?(mp3|wav))[\"\']+.*?>"."([^<]+|.*?)?<\/a>/i";
  preg_match_all(trim($preg),
          file_get_contents($url), $out, PREG_PATTERN_ORDER);
  $keys = $out[1];
  $values = $out[2];
  array_walk($values, 'remove_html');
  return (array_combine_emulated($keys, $values));
}
[/code]

p.s. array_combine_emulated() emulates array_combine (PHP5)

[obsidian]

I'm just going to start from scratch here, as I'm not sure what all you're doing. The following will match the href and the text of a link:
[code]
/<a .+?href=("|')([^\1]+?)\1.*?[^>]?>([^<]+?)<\/a>/
[/code]

The second and third backreferences hold your URL and text. If you want to limit it to .mp3 and .wav file, just modify it like this:
[code]
/<a .+?href=("|')([^\1]_?(\.mp3|\.wav))\1.*?[^>]?>([^<]+?)<\/a>/
[/code]

Obviously, you'll need to escape some quotes in there once you put it into code, but it should give you something to go off of.

Good luck