Simple get URL content and extract non dynamic images

function get_content($url)
{
    $ch = curl_init();
    curl_setopt ($ch, CURLOPT_URL, $url);
    curl_setopt ($ch, CURLOPT_HEADER, 0);
    ob_start();
    curl_exec ($ch);
    curl_close ($ch);
    $string = ob_get_contents();
    ob_end_clean();
    return $string;    
}

function print_images($url){
    $string = $this->get_content($url);
    preg_match_all('/<img src="([^"]+)"/i', $string, $matches);
    foreach($matches[0] as $k=>$v){
      $url = $matches[1][$k];
      echo $v . ' width="75px" height="75px" onclick=img("' . $url . '") />'     ;
    }
    echo '<script> function img(i){ jQuery("textarea#_image").val(i); };</script>';
}