The PHP ftp_nb_put() function uploads a file to the FTP server (non-blocking).

The PHP ftp_nlist() function returns a list of files in the specified directory on the FTP server.

The PHP ftp_pasv() function turns passive mode on or off.

The PHP ftp_put() function uploads a file to the FTP server.

The PHP ftp_pwd() function returns the current directory name.

The PHP ftp_raw() function sends a raw command to the FTP server.

The PHP ftp_rawlist() function returns a list of files with file information from a specified directory on the FTP server.

The PHP ftp_rename() function renames a file or directory on the FTP server.

The PHP ftp_rmdir() function deletes a directory on the FTP server.

The PHP ftp_set_option() function sets runtime options of the current FTP connection.

The PHP ftp_site() function sends a SITE command to the FTP server.

The PHP ftp_size() function returns the size of a specified file on the FTP server.

The PHP ftp_ssl_connect() function opens a secure SSL-FTP connection. Once the connection is open, FTP functions can be run against the server.

The PHP ftp_systype() function returns the system type identifier of the FTP server.