nadirs

useradd $1
mkdir /home/$1/www
chown root /home/$1
echo "/some/external/dir /home/$1/www none rw,bind" >> /etc/fstab
mount -a

echo "
Match User $1
  ChrootDirectory /home/$1
  ForceCommand internal-sftp

nadirs

<?php

class MyDb {
    protected $link = null;

    public function __construct() {
        $this->link = mysqli_connect('host', 'username', 'password', 'database');
    }

    public function getCategoryByName($name) {