Client

<?php

class LonaDB {
    private $host;
    private $port;
    private $name;
    private $password;

    public function __construct($host, $port, $name, $password) {
        $this->host = $host;
        $this->port = $port;
        $this->name = $name;
        $this->password = $password;
    }

    private function makeid($length) {
        $result = "";
        $characters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890abcdefghijklmnopqrstuvwxyz";
        $counter = 0;

        while ($counter < $length) {
            $result .= $characters[mt_rand(0, strlen($characters) - 1)];
            $counter += 1;
        }

        return $result;
    }

    private function sendRequest($action, $data) {
        $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
        if ($socket === false) {
            return ["err" => socket_strerror(socket_last_error())];
        }

        $result = socket_connect($socket, $this->host, $this->port);
        if ($result === false) {
            return ["err" => socket_strerror(socket_last_error($socket))];
        }

        $processID = $this->makeid(5);

        $request = json_encode([
            "action" => $action,
            "login" => [
                "name" => $this->name,
                "password" => $this->password
            ],
            "process" => $processID
        ] + $data);

        socket_write($socket, $request, strlen($request));

        $response = socket_read($socket, 2048);
        socket_close($socket);

        return json_decode($response, true);
    }

    public function getTables($user) {
        $data = [
            "user" => $user
        ];

        return $this->sendRequest("get_tables", $data);
    }

    public function getTableData($table) {
        $data = [
            "table" => $table
        ];

        return $this->sendRequest("get_table_data", $data);
    }

    public function deleteTable($table) {
        $data = [
          "table" => ["name" => $table]
        ];

        return $this->sendRequest("delete_table", $data);
    }

    public function createTable($table) {
      $data = [
        "table" => ["name" => $table]
      ];

      return $this->sendRequest("create_table", $data);
    }

    public function set($table, $name, $value) {
        $data = [
          "table" => ["name" => $table],
          "variable" => [
            "name" => $name,
            "value" => $value
          ]
        ];

      return $this->sendRequest("set_variable", $data);
    }

    public function delete($table, $name){
      $data = [
        "table" => ["name" => $table],
        "variable" => ["name" => $name]
      ];

      return $this->sendRequest("remove_variable", $data);
    }

    public function get($table, $name){
        $data = [
          "table" => ["name" => $table],
          "variable" => [
            "name" => $name
          ]
        ];

      return $this->sendRequest("get_variable", $data);
    }

    public function getUsers(){
        $data = [];

      return $this->sendRequest("get_users", $data);
    }

    public function createUser($name, $pass){
        $data = [
            "user" => [
                "name" => $name,
                "password" => $pass
            ]
        ];

      return $this->sendRequest("create_user", $data);
    }

    public function deleteUser($name){
        $data = [
            "user" => [
                "name" => $name
            ]
        ];

      return $this->sendRequest("delete_user", $data);
    }

    public function checkPassword($name, $pass){
        $data = [
            "checkPass" => [
                "name" => $name,
                "pass" => $pass
            ]
        ];

      return $this->sendRequest("check_password", $data);
    }

    public function checkPermission($name, $permission){
        $data = [
            "permission" => [
                "user" => $name,
                "name" => $permission
            ]
        ];

      return $this->sendRequest("check_permission", $data);
    }

    public function removePermission($name, $permission){
        $data = [
            "permission" => [
                "user" => $name,
                "name" => $permission
            ]
        ];

      return $this->sendRequest("remove_permission", $data);
    }

    public function getPermissionsRaw($name){
        $data = [
            "user" => $name
        ];

      return $this->sendRequest("get_permissions_raw", $data);
    }

    public function addPermission($name){
        $data = [
            "permission" => [
                "user" => $name,
                "name" => $permission
            ]
        ];

      return $this->sendRequest("add_permission", $data);
    }

    public function eval($func) {
        $data = [
            "function" => $func
        ];

        return $this->sendRequest("eval", $data);
    }
}

?>