php how to create file in specific directory
<p>How would I create a file in a specific directory? </p>

<p>this is my code at the moment : <br></p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-html lang-html prettyprint-override"><code>$username = $_POST["username"];

$filedir = "./u/".$username;

mkdir($filedir);

$folder = $filedir;
chmod($filedir, 0777);

$createfile = fopen( $_SERVER['DOCUMENT_ROOT'] . '/path/filename.php' );</code></pre>
</div>
</div>

<br> 
I have also tried fopen but that didn't work :(<br><br></p>

<p>I HAVE GOT IT!!! It was </p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-html lang-html prettyprint-override"><code>$createfile = fopen('./u/'.$username.'/'.$username.'.php', 'x');</code></pre>
</div>
</div>

<br>
Thanks for all the help guy :) really appreciated.</p>