Delete folder with PHP?

The script I'm making is for a private gallery for a photography company. I need to add a gallery folder for individual users, but also need to delete that folder when the user is removed from the db.
 
I can make a folder using this code:

<?php 


 include "../includes/db.php"; //include db config file
 
//post data from the form

 $username= mysql_real_escape_string($_POST['username']);
 $password= md5($_POST['password']); 
$gallery= mysql_real_escape_string($_POST['username']); 

//start insert

  mysql_query("INSERT INTO `p_users` VALUES ( '$id', '$username', '$password', '$gallery') "); 

//done

  echo "<font color=green>Success:</font> The user was added to the database!<br><br><font color=red><b>YOU WILL BE REDIRECTED SHORTLY...</font></b>

//redirect

<meta http-equiv='REFRESH' content='3;url=http://www.***'>"; 

//make the directory

  mkdir("../images/usergalleries/$username", 0700); ?> 

PHP:

   But I'm having  difficulty removing the folder when the user is removed:

<?php 

$username = $_POST['username']; 

include "../includes/db.php";  

mysql_query("DELETE FROM p_users WHERE username = '$username'"); 

echo "<font color=green>Success:</font> The user was removed from the database!<br><br><font color=red><b>YOU WILL BE REDIRECTED SHORTLY...</font></b>

<meta http-equiv='REFRESH' content='3;url=http://www***'>";

 if (!is_dir('../images/usergalleries/$username/')) { mkdir('../images/usergalleries/$username/'); }  rmdir('../images/usergalleries/$username/'); 

PHP:

?> 

Could somebody help? If you reply with a script, could you please let me know what's happening with the script so I can understand it.

Thanks! 

 

The folder must be empty before being deleted.
Maybe this will work (not tested).

if (is_dir('../images/usergalleries/$username/')) {
	$directory = '../images/usergalleries/$username/';
	$handler = opendir($directory);
	while ($file = readdir($handler)) {//delete all files
		if ($file != "." && $file != "..") {
			unlink($directory.$file);
		}
	}
	closedir($handler);
	rmdir($directory);
}

PHP:

 

Nope, nada, nothing. Doesn't output an error but also doesn't remove the directory which is already empty.

 

Do you have the right permissions?

 

Ah good point, I'm sure I'm creating the directory by CHMOD 0700. 

Edit to add:
Nope, changed it to 0777 and still doesn't delete it.