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315 lines
11 KiB
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<title>FTP Class : CodeIgniter User Guide</title>
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<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
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<tr>
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<td><h1>CodeIgniter User Guide Version 2.1.4</h1></td>
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<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
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<tr>
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<a href="http://codeigniter.com/">CodeIgniter Home</a> ›
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<a href="../index.html">User Guide Home</a> ›
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FTP Class
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</td>
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<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="ellislab.com/codeigniter/user-guide/" />Search User Guide <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td>
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</table>
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<!-- START CONTENT -->
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<div id="content">
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<h1>FTP Class</h1>
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<p>CodeIgniter's FTP Class permits files to be transfered to a remote server. Remote files can also be moved, renamed,
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and deleted. The FTP class also includes a "mirroring" function that permits an entire local directory to be recreated remotely via FTP.</p>
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<p class="important"><strong>Note:</strong> SFTP and SSL FTP protocols are not supported, only standard FTP.</p>
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<h2>Initializing the Class</h2>
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<p>Like most other classes in CodeIgniter, the FTP class is initialized in your controller using the <dfn>$this->load->library</dfn> function:</p>
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<code>$this->load->library('ftp');</code>
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<p>Once loaded, the FTP object will be available using: <dfn>$this->ftp</dfn></p>
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<h2>Usage Examples</h2>
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<p>In this example a connection is opened to the FTP server, and a local file is read and uploaded in ASCII mode. The
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file permissions are set to 755.</p>
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<code>
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$this->load->library('ftp');<br />
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<br />
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$config['hostname'] = 'ftp.example.com';<br />
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$config['username'] = 'your-username';<br />
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$config['password'] = 'your-password';<br />
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$config['debug'] = TRUE;<br />
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<br />
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$this->ftp->connect($config);<br />
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<br />
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$this->ftp->upload('/local/path/to/myfile.html', '/public_html/myfile.html', 'ascii', 0775);<br />
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<br />
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$this->ftp->close();
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</code>
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<p>In this example a list of files is retrieved from the server.</p>
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<code>
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$this->load->library('ftp');<br />
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<br />
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$config['hostname'] = 'ftp.example.com';<br />
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$config['username'] = 'your-username';<br />
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$config['password'] = 'your-password';<br />
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$config['debug'] = TRUE;<br />
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<br />
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$this->ftp->connect($config);<br />
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<br />
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$list = $this->ftp->list_files('/public_html/');<br />
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<br />
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print_r($list);<br />
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<br />
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$this->ftp->close();
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</code>
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<p>In this example a local directory is mirrored on the server.</p>
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<code>
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$this->load->library('ftp');<br />
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<br />
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$config['hostname'] = 'ftp.example.com';<br />
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$config['username'] = 'your-username';<br />
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$config['password'] = 'your-password';<br />
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$config['debug'] = TRUE;<br />
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<br />
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$this->ftp->connect($config);<br />
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<br />
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$this->ftp->mirror('/path/to/myfolder/', '/public_html/myfolder/');<br />
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<br />
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$this->ftp->close();
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</code>
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<h1>Function Reference</h1>
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<h2>$this->ftp->connect()</h2>
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<p>Connects and logs into to the FTP server. Connection preferences are set by passing an array
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to the function, or you can store them in a config file.</p>
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<p>Here is an example showing how you set preferences manually:</p>
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<code>
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$this->load->library('ftp');<br />
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<br />
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$config['hostname'] = 'ftp.example.com';<br />
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$config['username'] = 'your-username';<br />
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$config['password'] = 'your-password';<br />
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$config['port'] = 21;<br />
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$config['passive'] = FALSE;<br />
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$config['debug'] = TRUE;<br />
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<br />
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$this->ftp->connect($config);<br />
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</code>
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<h3>Setting FTP Preferences in a Config File</h3>
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<p>If you prefer you can store your FTP preferences in a config file.
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Simply create a new file called the <var>ftp.php</var>, add the <var>$config</var>
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array in that file. Then save the file at <var>config/ftp.php</var> and it will be used automatically.</p>
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<h3>Available connection options:</h3>
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<ul>
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<li><strong>hostname</strong> - the FTP hostname. Usually something like: <dfn>ftp.example.com</dfn></li>
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<li><strong>username</strong> - the FTP username.</li>
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<li><strong>password</strong> - the FTP password.</li>
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<li><strong>port</strong> - The port number. Set to <dfn>21</dfn> by default.</li>
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<li><strong>debug</strong> - <kbd>TRUE/FALSE</kbd> (boolean). Whether to enable debugging to display error messages.</li>
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<li><strong>passive</strong> - <kbd>TRUE/FALSE</kbd> (boolean). Whether to use passive mode. Passive is set automatically by default.</li>
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</ul>
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<h2>$this->ftp->upload()</h2>
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<p>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.
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Example:</p>
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<code>$this->ftp->upload('/local/path/to/myfile.html', '/public_html/myfile.html', 'ascii', 0775);</code>
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<p><strong>Mode options are:</strong> <kbd>ascii</kbd>, <kbd>binary</kbd>, and <kbd>auto</kbd> (the default). If
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<kbd>auto</kbd> is used it will base the mode on the file extension of the source file.</p>
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<p>Permissions can be passed as an <kbd>octal</kbd> value in the fourth parameter.</p>
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<h2>$this->ftp->download()</h2>
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<p>Downloads a file from your server. You must supply the remote path and the local path, and you can optionally set the mode.
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Example:</p>
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<code>$this->ftp->download('/public_html/myfile.html', '/local/path/to/myfile.html', 'ascii');</code>
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<p><strong>Mode options are:</strong> <kbd>ascii</kbd>, <kbd>binary</kbd>, and <kbd>auto</kbd> (the default). If
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<kbd>auto</kbd> is used it will base the mode on the file extension of the source file.</p>
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<p>Returns FALSE if the download does not execute successfully (including if PHP does not have permission to write the local file)</p>
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<h2>$this->ftp->rename()</h2>
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<p>Permits you to rename a file. Supply the source file name/path and the new file name/path.</p>
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<code>
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// Renames green.html to blue.html<br />
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$this->ftp->rename('/public_html/foo/green.html', '/public_html/foo/blue.html');
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</code>
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<h2>$this->ftp->move()</h2>
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<p>Lets you move a file. Supply the source and destination paths:</p>
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<code>
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// Moves blog.html from "joe" to "fred"<br />
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$this->ftp->move('/public_html/joe/blog.html', '/public_html/fred/blog.html');
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</code>
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<p>Note: if the destination file name is different the file will be renamed.</p>
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<h2>$this->ftp->delete_file()</h2>
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<p>Lets you delete a file. Supply the source path with the file name.</p>
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<code>
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$this->ftp->delete_file('/public_html/joe/blog.html');
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</code>
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<h2>$this->ftp->delete_dir()</h2>
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<p>Lets you delete a directory and everything it contains. Supply the source path to the directory with a trailing slash.</p>
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<p class="important"><strong>Important</strong> Be VERY careful with this function. It will recursively delete
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<b>everything</b> within the supplied path, including sub-folders and all files. Make absolutely sure your path is correct.
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Try using the <kbd>list_files()</kbd> function first to verify that your path is correct.</p>
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<code>
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$this->ftp->delete_dir('/public_html/path/to/folder/');
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</code>
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<h2>$this->ftp->list_files()</h2>
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<p>Permits you to retrieve a list of files on your server returned as an <dfn>array</dfn>. You must supply
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the path to the desired directory.</p>
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<code>
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$list = $this->ftp->list_files('/public_html/');<br />
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<br />
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print_r($list);
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</code>
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<h2>$this->ftp->mirror()</h2>
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<p>Recursively reads a local folder and everything it contains (including sub-folders) and creates a
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mirror via FTP based on it. Whatever the directory structure of the original file path will be recreated on the server.
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You must supply a source path and a destination path:</p>
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<code>
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$this->ftp->mirror('/path/to/myfolder/', '/public_html/myfolder/');
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</code>
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<h2>$this->ftp->mkdir()</h2>
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<p>Lets you create a directory on your server. Supply the path ending in the folder name you wish to create, with a trailing slash.
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Permissions can be set by passed an <kbd>octal</kbd> value in the second parameter.</p>
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<code>
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// Creates a folder named "bar"<br />
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$this->ftp->mkdir('/public_html/foo/bar/', DIR_WRITE_MODE);
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</code>
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<h2>$this->ftp->chmod()</h2>
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<p>Permits you to set file permissions. Supply the path to the file or folder you wish to alter permissions on:</p>
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<code>
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// Chmod "bar" to 777<br />
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$this->ftp->chmod('/public_html/foo/bar/', DIR_WRITE_MODE);
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</code>
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<h2>$this->ftp->close();</h2>
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<p>Closes the connection to your server. It's recommended that you use this when you are finished uploading.</p>
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</div>
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<!-- END CONTENT -->
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<div id="footer">
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<p>
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Previous Topic: <a href="form_validation.html">Form Validation Class</a>
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·
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<a href="#top">Top of Page</a> ·
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<a href="../index.html">User Guide Home</a> ·
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Next Topic: <a href="table.html">HTML Table Class</a>
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</p>
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<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006 - 2012 · <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
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