a simple PHP curl function to get the content type

simple-curl.php

function simple_curl($url)
{
  $ch = curl_init();
  curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt ($ch, CURLOPT_URL, $url);
  curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, 20);
  curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, true);
  curl_setopt($ch, CURLOPT_HEADER, true);
  curl_setopt($ch, CURLOPT_NOBODY, true);
  $content = curl_exec ($ch);
  $contentType = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
  curl_close ($ch);
  return $contentType;
}