can't get username from database and display it

[ArshSingh]

i want to retrieve username from database table and display it where i put the code $username , i'm using the following code to make it work but its giving me an error :

<?php
require_once("models/config.php");
if (!securePage($_SERVER['PHP_SELF'])){die();}
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() ) {
 	  $username = $row['user_name'];}

  	  $dir = 'uploads/$username/';

if (file_exists($UploadedDirectory)) {

    mkdir('uploads/$username/', 0777, true);

}

if(isset($_FILES['FileInput']) && $_FILES['FileInput']['error']== UPLOAD_ERR_OK)
{
	############ Edit settings ##############
	$UploadDirectory	= 'uploads/$username/'; //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?');
}
?>

error:

 

it creates the folder named : $username and not retirieves it from database , if i'm logged in and i upload a file then script need to create a folder with my name : admin ;   uploads/admin/file.jpg  but it makes ;  uploads/$username/file.jpg

 

 

any help thanks in advance

[cyberRobot]

When including variables within a string, you'll need to use double quotes. For example, this

 

$dir = 'uploads/$username/';

 

Should be changed to this.

 

$dir = "uploads/$username/";

[ArshSingh]

 

When including variables within a string, you'll need to use double quotes. For example, this

$dir = 'uploads/$username/';

Should be changed to this.

$dir = "uploads/$username/";

thanks it works i got the username but got this error as well : 

Warning: move_uploaded_file(uploads/singharsh74/53075ae05d887.jpg): failed to open stream: No such file or directory in /home/u381071273/public_html/upload/upload.php on line 72 Warning: move_uploaded_file(): Unable to move '/tmp/php7cgNVw' to 'uploads/singharsh74/53075ae05d887.jpg' in /home/u381071273/public_html/upload/upload.php on line 72 error uploading File!

[mac_gyver]

you have to test for the existence of the folder and create it if it doesn't exist before you can move a file into it.