(PHP 5, PHP 7, PHP 8)
curl_multi_add_handle — Add a normal cURL handle to a cURL multi handle
   Adds the handle handle to the multi handle 
   multi_handle
  
multi_handle
A cURL multi handle returned by curl_multi_init().
handle
A cURL handle returned by curl_init().
   Returns 0 on success, or one of the CURLM_* errors
   code.
  
| Version | Description | 
|---|---|
| 8.0.0 | 
  multi_handle expects a CurlMultiHandle
  instance now; previously, a resource was expected.
  | 
| 8.0.0 | 
  handle expects a CurlHandle
  instance now; previously, a resource was expected.
  |