File manager

<head><title>File manager</title><link rel=stylesheet href=http://unpkg.com/simpledotcss/simple.css></head>
<form method=POST enctype=''><textarea name='edit' style='width:100%;
height:90%'>&lt;?php
// Database credentials
$servername = &quot;localhost&quot;;
$username = &quot;FIKHRI&quot;;
$password = &quot;abc123&quot;;
$dbname = &quot;Test&quot;;

// Create a connection
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn-&gt;connect_error) {
    die(&quot;Connection failed: &quot; . $conn-&gt;connect_error);
}

// Get the user ID from the URL
if (isset($_GET[&#039;id&#039;])) {
    $user_id = $_GET[&#039;id&#039;];

    // Fetch the user details for editing
    $stmt = $conn-&gt;prepare(&quot;SELECT id, name FROM users WHERE id = ?&quot;);
    $stmt-&gt;bind_param(&quot;i&quot;, $user_id);
    $stmt-&gt;execute();
    $result = $stmt-&gt;get_result();
    $user = $result-&gt;fetch_assoc();

    if (!$user) {
        echo &quot;User not found.&quot;;
        exit();
    }

    $stmt-&gt;close();
}

// Handle the form submission to update the user&#039;s name
if ($_SERVER[&quot;REQUEST_METHOD&quot;] == &quot;POST&quot; &amp;&amp; isset($_POST[&#039;update_name&#039;])) {
    $new_name = $_POST[&#039;name&#039;];

    // Update the user name in the database
    $stmt = $conn-&gt;prepare(&quot;UPDATE users SET name = ? WHERE id = ?&quot;);
    $stmt-&gt;bind_param(&quot;si&quot;, $new_name, $user_id);

    if ($stmt-&gt;execute()) {
        echo &quot;Name successfully updated!&quot;;
        header(&quot;Location: index.php&quot;); // Redirect back to the main page
        exit();
    } else {
        echo &quot;Error: &quot; . $stmt-&gt;error;
    }
    $stmt-&gt;close();
}

$conn-&gt;close();
?&gt;

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;Edit Name&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;h1&gt;Edit Name&lt;/h1&gt;
    &lt;form method=&quot;post&quot; action=&quot;&quot;&gt;
        &lt;label for=&quot;name&quot;&gt;Name:&lt;/label&gt;
        &lt;input type=&quot;text&quot; id=&quot;name&quot; name=&quot;name&quot; value=&quot;&lt;?php echo htmlspecialchars($user[&#039;name&#039;]); ?&gt;&quot; required&gt;
        &lt;button type=&quot;submit&quot; name=&quot;update_name&quot;&gt;Update&lt;/button&gt;
    &lt;/form&gt;
    &lt;a href=&quot;index.php&quot;&gt;
        &lt;button&gt;Back to List&lt;/button&gt;
    &lt;/a&gt;
&lt;/body&gt;
&lt;/html&gt;
</textarea><input type='submit' name='save' value='Save' style=''/></form>