curl_exec not returning data
<p>For some reason the code below when I iterate through some urls, curl_exec never returns anything.  I've verified the urls it is getting are correct.  I've manually checked them to see if there is output.  I've tried removing CURLOPT_RETURNTRANSFER, and curl_exec would return true.  I'm not sure why curl_exec isn't returning the data that I need.</p>

<pre><code>function _curl_get($urls)
{
    $html_str = '';
    foreach ($urls as $url)
    {
        $curl_handle=curl_init();
        curl_setopt($curl_handle, CURLOPT_URL, $url);
        curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, 1);
        $html_str .= curl_exec($curl_handle);
        curl_close($curl_handle);
    }

    return $html_str;
}
</code></pre>
