How to Rename FTP Directory Using the ftp_rename Function: Step-by-Step Guide

1. Introduction to the ftp_rename Function

ftp_rename is a built-in PHP function used to rename files or directories on an FTP server. Its basic syntax is as follows:

<span><span><span class="hljs-keyword">bool</span></span><span> </span><span><span class="hljs-title function_ invoke__">ftp_rename</span></span><span> ( resource </span><span><span class="hljs-variable">$ftp_stream</span></span><span> , </span><span><span class="hljs-keyword">string</span></span><span> </span><span><span class="hljs-variable">$from</span></span><span> , </span><span><span class="hljs-keyword">string</span></span><span> </span><span><span class="hljs-variable">$to</span></span><span> )
</span></span>

• $ftp_stream: The FTP connection resource, which must be established using functions like ftp_connect or ftp_ssl_connect.

• $from: The path of the original file or directory to be renamed.

• $to: The path for the new file or directory name, i.e., the name after renaming.

The function returns TRUE if the rename operation succeeds and FALSE if it fails.

2. Step-by-Step Process to Rename a Directory Using ftp_rename

Step 1: Establish an FTP Connection

First, use the ftp_connect function to connect to the FTP server. If the server requires authentication, log in using ftp_login.

<span><span><span class="hljs-meta">&lt;?php</span></span><span>
</span><span><span class="hljs-variable">$ftp_server</span></span><span> = </span><span><span class="hljs-string">"ftp.example.com"</span></span><span>;
</span><span><span class="hljs-variable">$ftp_username</span></span><span> = </span><span><span class="hljs-string">"username"</span></span><span>;
</span><span><span class="hljs-variable">$ftp_password</span></span><span> = </span><span><span class="hljs-string">"password"</span></span><span>;
<p></span>// Establish FTP connection<br>
$ftp_conn = ftp_connect($ftp_server) or die("Could not connect to FTP server");</p>
<p>// Log in to FTP server<br>
$login = ftp_login($ftp_conn, $ftp_username, $ftp_password);</p>
<p>if (!$login) {<br>
die("Login failed.");<br>
}<br>
?><br>
</span>

Step 2: Execute the Rename Operation

Use the ftp_rename function to rename a directory on the FTP server. For example, to rename /old_directory to /new_directory, you can use the following code:

<span><span><span class="hljs-meta">&lt;?php</span></span><span>
</span><span><span class="hljs-variable">$old_dir</span></span><span> = </span><span><span class="hljs-string">"/old_directory"</span></span><span>;
</span><span><span class="hljs-variable">$new_dir</span></span><span> = </span><span><span class="hljs-string">"/new_directory"</span></span><span>;
<p></span>// Rename directory<br>
if (ftp_rename($ftp_conn, $old_dir, $new_dir)) {<br>
echo "Directory renamed successfully!";<br>
} else {<br>
echo "Failed to rename directory!";<br>
}<br>
?><br>
</span>

Step 3: Close the FTP Connection

After completing the rename operation, close the connection to the FTP server to free resources:

<span><span><span class="hljs-meta">&lt;?php</span></span><span>
</span><span><span class="hljs-comment">// Close FTP connection</span></span><span>
</span><span><span class="hljs-title function_ invoke__">ftp_close</span></span><span>(</span><span><span class="hljs-variable">$ftp_conn</span></span><span>);
</span><span><span class="hljs-meta">?&gt;</span></span><span>
</span></span>

3. Important Notes

When using the ftp_rename function, pay attention to the following points:

1. Permissions

Ensure that the FTP account has sufficient permissions to rename directories. Without the proper permissions, ftp_rename will fail.

2. Directory Existence Check

The ftp_rename function does not check if the source directory exists. If the source directory is missing or the path is incorrect, the operation will fail. You can use ftp_chdir or ftp_nlist to verify the existence of the source directory.

<span><span><span class="hljs-meta">&lt;?php</span></span><span>
</span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-title function_ invoke__">ftp_chdir</span></span><span>(</span><span><span class="hljs-variable">$ftp_conn</span></span><span>, </span><span><span class="hljs-variable">$old_dir</span></span><span>)) {
    </span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-title function_ invoke__">ftp_rename</span></span><span>(</span><span><span class="hljs-variable">$ftp_conn</span></span><span>, </span><span><span class="hljs-variable">$old_dir</span></span><span>, </span><span><span class="hljs-variable">$new_dir</span></span><span>)) {
        </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"Directory renamed successfully!"</span></span><span>;
    } </span><span><span class="hljs-keyword">else</span></span><span> {
        </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"Failed to rename directory!"</span></span><span>;
    }
} </span><span><span class="hljs-keyword">else</span></span><span> {
    </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"Source directory does not exist!"</span></span><span>;
}
</span><span><span class="hljs-meta">?&gt;</span></span><span>
</span></span>

3. Path Accuracy

The paths specified in ftp_rename are relative to the FTP root directory. Ensure that the paths are correct. For renaming items in the root directory, use the directory name directly; for subdirectories, include the full relative path.

• Related Tags:

  FTP