can't select username from database table and display it - php

Question

i'm just trying to get username from database table and upload the file into the folder named with username but it gives me an error. this is the error : Parse error: syntax error, unexpected T_STRING in /home/u381071273/public_html/upload/upload.php on line 18but i can't find it. i want to get username from database table and display it where i put &username
code:
require("models/db-settings.php");
$mysqli = new mysqli($db_host, $db_user, $db_pass, $db_name);
$result = $mysqli->query("SELECT user_name FROM upl_users");
// This will move the internal pointer and skip the first row, we don't want that.
//$row = mysql_fetch_assoc($result);
//echo $row['user_name'];
while ( $row = $result->fetch_assoc() ) {
echo $row['user_name'];}
$dir = "uploads/".$row['user_name']."/";
if (file_exists($UploadedDirectory)) {
mkdir('uploads/".$row['user_name']."/', 0777, true);
}
if(isset($_FILES["FileInput"]) && $_FILES["FileInput"]["error"]== UPLOAD_ERR_OK)
{
############ Edit settings ##############
$UploadDirectory = 'uplaods/".$row['user_name']."/'; //specify upload directory ends with / (slash)
##########################################
/*
Note : You will run into errors or blank page if "memory_limit" or "upload_max_filesize" is set to low in "php.ini".
Open "php.ini" file, and search for "memory_limit" or "upload_max_filesize" limit
and set them adequately, also check "post_max_size".
*/
//check if this is an ajax request
if (!isset($_SERVER['HTTP_X_REQUESTED_WITH'])){
die();
}
//Is file size is less than allowed size.
if ($_FILES["FileInput"]["size"] > 5242880) {
die("File size is too big!");
}
//allowed file type Server side check
switch(strtolower($_FILES['FileInput']['type']))
{
//allowed file types
case 'image/png':
case 'image/gif':
case 'image/jpeg':
case 'image/pjpeg':
case 'text/plain':
case 'text/html': //html file
case 'application/x-zip-compressed':
case 'application/pdf':
case 'application/msword':
case 'application/vnd.ms-excel':
case 'video/mp4':
case 'audio/mp3';
break;
default:
die('Unsupported File!'); //output error
}
$File_Name = strtolower($_FILES['FileInput']['name']);
$File_Ext = substr($File_Name, strrpos($File_Name, '.')); //get file extention
$Random_Number = uniqid(); //Random number to be added to name.
$NewFileName = $Random_Number.$File_Ext; //new file name
if(move_uploaded_file($_FILES['FileInput']['tmp_name'], $UploadDirectory.$NewFileName ))
{
die('Success! File Uploaded.');
}else{
die('error uploading File!');
}
}
else
{
die('Something wrong with upload! Is "upload_max_filesize" set correctly?');
}

Answer 1

mkdir('uploads/".$row['user_name']."/', 0777, true);
Should be:
mkdir('uploads/'.$row['user_name'].'/', 0777, true);
(You used different string anchors when doing the concatenation - started string with ' but tried to close it with ")

Answer 2

use this line:( you can use single quotes or double quotes dont mix)
mkdir("uploads/".$row['user_name']."/", 0777, true);