CURLOPT_DIRLISTONLY

CURLOPT_DIRLISTONLY is one of the accepted parameters for curl_setopt parameter #2.

CURLOPT_DIRLISTONLY — Setting this option to 1 will have different effects based on the protocol it is used with. FTP and SFTP based URLs will list only the names of files in a directory. POP3 will list the email message or messages on the POP3 server. For FILE, this option has no effect as directories are always listed in this mode. Using this option with CURLOPT_WILDCARDMATCH will prevent the latter from having any effect. Defaults to 0. Available as of cURL 7.17.0.

CURLOPT_DIRLISTONLY = 48;