curl see response code example

Example 1: php curl print status

$url = 'http://www.example.com';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, true);    // we want headers
curl_setopt($ch, CURLOPT_NOBODY, true);    // we don't need body
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_TIMEOUT,10);
$output = curl_exec($ch);
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

echo 'HTTP code: ' . $httpcode;

Example 2: curl get example

curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource

Example 3: curl get return code

curl -I http://www.example.org

Example 4: curl check response headers

Just use '-ISs' flag options I:(only headers), sS:(silence and no errors) 
curl www.example -ISs