I have retrieved html page using cURL, now I want to extract the specific meta content from the meta data. i.e. `<meta name="ids" content="123nsdfsdfAS">`.

What I did as follows:

```
function file_get_contents_curl($url)
{
$agent= 'Mozilla/5.0 (Windows NT 6.2; WOW64; rv:17.0) Gecko/20100101 Firefox/17.0';

$ch = curl_init();

curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_USERAGENT, $agent);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

$data = curl_exec($ch);
curl_close($ch);

return $data;
}

$html = file_get_contents_curl("http://example.com");

```

So, I want to extract a specific meta content i.e. `<meta name="ids" content="123nsdfsdfAS">` from `$html` using `preg_match_all` or `preg_match` or related any function and regular expression. I have written a regex but that is not good, so I did not mention here.