My PHP code not creating a directory - php

Question

<?php
error_reporting(0);
$title='New Account'; /*This is a page that creates new account*/
include('header.php'); /*header file included*/
extract($_POST);
if(isset($r9)) /*$r9 is submit */
{
if(!empty($r1) && !empty($r2) && !empty($r3) && !empty($r4) && !empty($r5) && !empty($r6) && !empty($r7) && !empty($r8) )
{
if(is_dir("user/$r3")) //$r3 is the email the person is providing
{
echo "User already registered";
}
else
{
mkdir("user/$r3"); /*directory creation*/
file_put_contents("user/$r3/details.txt","$r1\n$r2\n$r4\n$r5\n$r6\n$r7\n$r8");
header("location:welcome.php"); /*the next page it must go after this*/
}
}
}
?>
This is my PHP code and it is not creating the directory. Please help me out.

Answer 1

Please turn on the error reporting to see the error messages, that will help you to solve this problem. Please check if your web server has permissions to creating a new directory. If your web server has the permissions already to write in the folder user then try to edit the following code:
mkdir("user/$r3");
to
mkdir("/THE_HOLE_URL_TO_THIS_FOLDER/user/$r3");
for example mkdir("/opt/lampp/htdocs/myhomespace/user/$r3");