$ch = curl_init();
curl_setopt($ch,CURLOPT_URL, 'https://api.cloudflare.com/client/v4/zones/023e105f4ecef8ad9ca31a8372d0c353 ');
curl_setopt($ch, CURLOPT_HTTPHEADER,  array(
        'X-Auth-Email: user @ example.com',
        'X-Auth-Key: c2547eb745079dac9320b638f5e225cf483cc5cfdda41',
        'Content-Type: application/json',
    ));
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE");
$response = curl_exec($ch);
curl_close($ch);
var_dump($response);