Initializes a new session and return a cURL handle for use with the curl_setopt, curl_exec, and curl_close functions.
If provided, the CURLOPT_URL option will be set to its value. You can manually set this using the curl_setopt function.
The file protocol is disabled by cURL if open_basedir is set.
Returns a cURL handle on success, false on errors.
|8.0.0||On success, this function returns a CurlHandle instance now; previously, a resource was returned.|
|8.0.0||url is nullable now.|