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+#########
+FTP Class
+#########
+
+CodeIgniter's FTP Class permits files to be transfered to a remote
+server. Remote files can also be moved, renamed, and deleted. The FTP
+class also includes a "mirroring" function that permits an entire local
+directory to be recreated remotely via FTP.
+
+.. note:: SFTP and SSL FTP protocols are not supported, only standard
+	FTP.
+
+**********************
+Initializing the Class
+**********************
+
+Like most other classes in CodeIgniter, the FTP class is initialized in
+your controller using the $this->load->library function::
+
+	$this->load->library('ftp');
+
+Once loaded, the FTP object will be available using: $this->ftp
+
+Usage Examples
+==============
+
+In this example a connection is opened to the FTP server, and a local
+file is read and uploaded in ASCII mode. The file permissions are set to
+755.
+
+::
+
+	$this->load->library('ftp');
+
+	$config['hostname'] = 'ftp.example.com';
+	$config['username'] = 'your-username';
+	$config['password'] = 'your-password';
+	$config['debug']	= TRUE;
+
+	$this->ftp->connect($config);
+
+	$this->ftp->upload('/local/path/to/myfile.html', '/public_html/myfile.html', 'ascii', 0775);
+
+	$this->ftp->close();
+
+In this example a list of files is retrieved from the server.
+
+::
+
+	$this->load->library('ftp');
+
+	$config['hostname'] = 'ftp.example.com';
+	$config['username'] = 'your-username';
+	$config['password'] = 'your-password';
+	$config['debug']	= TRUE;
+
+	$this->ftp->connect($config);
+
+	$list = $this->ftp->list_files('/public_html/');
+
+	print_r($list);
+
+	$this->ftp->close();
+
+In this example a local directory is mirrored on the server.
+
+::
+
+	$this->load->library('ftp');
+
+	$config['hostname'] = 'ftp.example.com';
+	$config['username'] = 'your-username';
+	$config['password'] = 'your-password';
+	$config['debug']	= TRUE;
+
+	$this->ftp->connect($config);
+
+	$this->ftp->mirror('/path/to/myfolder/', '/public_html/myfolder/');
+
+	$this->ftp->close();
+
+******************
+Function Reference
+******************
+
+$this->ftp->connect()
+=====================
+
+Connects and logs into to the FTP server. Connection preferences are set
+by passing an array to the function, or you can store them in a config
+file.
+
+Here is an example showing how you set preferences manually::
+
+	$this->load->library('ftp');
+
+	$config['hostname'] = 'ftp.example.com';
+	$config['username'] = 'your-username';
+	$config['password'] = 'your-password';
+	$config['port']     = 21;
+	$config['passive']  = FALSE;
+	$config['debug']    = TRUE;
+
+	$this->ftp->connect($config);
+
+Setting FTP Preferences in a Config File
+****************************************
+
+If you prefer you can store your FTP preferences in a config file.
+Simply create a new file called the ftp.php, add the $config array in
+that file. Then save the file at config/ftp.php and it will be used
+automatically.
+
+Available connection options
+****************************
+
+-  **hostname** - the FTP hostname. Usually something like:
+   ftp.example.com
+-  **username** - the FTP username.
+-  **password** - the FTP password.
+-  **port** - The port number. Set to 21 by default.
+-  **debug** - TRUE/FALSE (boolean). Whether to enable debugging to
+   display error messages.
+-  **passive** - TRUE/FALSE (boolean). Whether to use passive mode.
+   Passive is set automatically by default.
+
+$this->ftp->upload()
+====================
+
+Uploads a file to your server. You must supply the local path and the
+remote path, and you can optionally set the mode and permissions.
+Example::
+
+	$this->ftp->upload('/local/path/to/myfile.html', '/public_html/myfile.html', 'ascii', 0775);
+
+**Mode options are:** ascii, binary, and auto (the default). If auto is
+used it will base the mode on the file extension of the source file.
+
+If set, permissions have to be passed as an octal value.
+
+$this->ftp->download()
+======================
+
+Downloads a file from your server. You must supply the remote path and
+the local path, and you can optionally set the mode. Example::
+
+	$this->ftp->download('/public_html/myfile.html', '/local/path/to/myfile.html', 'ascii');
+
+**Mode options are:** ascii, binary, and auto (the default). If auto is
+used it will base the mode on the file extension of the source file.
+
+Returns FALSE if the download does not execute successfully (including
+if PHP does not have permission to write the local file)
+
+$this->ftp->rename()
+====================
+
+Permits you to rename a file. Supply the source file name/path and the
+new file name/path.
+
+::
+
+	// Renames green.html to blue.html
+	$this->ftp->rename('/public_html/foo/green.html', '/public_html/foo/blue.html');
+
+$this->ftp->move()
+==================
+
+Lets you move a file. Supply the source and destination paths::
+
+	// Moves blog.html from "joe" to "fred"
+	$this->ftp->move('/public_html/joe/blog.html', '/public_html/fred/blog.html');
+
+Note: if the destination file name is different the file will be
+renamed.
+
+$this->ftp->delete_file()
+==========================
+
+Lets you delete a file. Supply the source path with the file name.
+
+::
+
+	 $this->ftp->delete_file('/public_html/joe/blog.html');
+
+$this->ftp->delete_dir()
+=========================
+
+Lets you delete a directory and everything it contains. Supply the
+source path to the directory with a trailing slash.
+
+**Important** Be VERY careful with this function. It will recursively
+delete **everything** within the supplied path, including sub-folders
+and all files. Make absolutely sure your path is correct. Try using the
+list_files() function first to verify that your path is correct.
+
+::
+
+	 $this->ftp->delete_dir('/public_html/path/to/folder/');
+
+$this->ftp->list_files()
+=========================
+
+Permits you to retrieve a list of files on your server returned as an
+array. You must supply the path to the desired directory.
+
+::
+
+	$list = $this->ftp->list_files('/public_html/');
+
+	print_r($list);
+
+$this->ftp->mirror()
+====================
+
+Recursively reads a local folder and everything it contains (including
+sub-folders) and creates a mirror via FTP based on it. Whatever the
+directory structure of the original file path will be recreated on the
+server. You must supply a source path and a destination path::
+
+	 $this->ftp->mirror('/path/to/myfolder/', '/public_html/myfolder/');
+
+$this->ftp->mkdir()
+===================
+
+Lets you create a directory on your server. Supply the path ending in
+the folder name you wish to create, with a trailing slash. Permissions
+can be set by passed an octal value in the second parameter (if you are
+running PHP 5).
+
+::
+
+	// Creates a folder named "bar"
+	$this->ftp->mkdir('/public_html/foo/bar/', DIR_WRITE_MODE);
+
+$this->ftp->chmod()
+===================
+
+Permits you to set file permissions. Supply the path to the file or
+folder you wish to alter permissions on::
+
+	// Chmod "bar" to 777
+	$this->ftp->chmod('/public_html/foo/bar/', DIR_WRITE_MODE);
+
+$this->ftp->close();
+====================
+
+Closes the connection to your server. It's recommended that you use this
+when you are finished uploading.