Repository: raihanafroz/zkteco
Branch: master
Commit: 6487ac5dfab3
Files: 20
Total size: 45.4 KB

Directory structure:
gitextract__pwo6lda/

├── CHANGELOG.md
├── README.md
├── composer.json
└── src/
    ├── Lib/
    │   ├── Helper/
    │   │   ├── Attendance.php
    │   │   ├── Connect.php
    │   │   ├── Device.php
    │   │   ├── Face.php
    │   │   ├── Fingerprint.php
    │   │   ├── Os.php
    │   │   ├── Pin.php
    │   │   ├── Platform.php
    │   │   ├── SerialNumber.php
    │   │   ├── Ssr.php
    │   │   ├── Time.php
    │   │   ├── User.php
    │   │   ├── Util.php
    │   │   ├── Version.php
    │   │   └── WorkCode.php
    │   └── ZKTeco.php
    └── Providers/
        └── ZktecoServiceProvider.php

================================================
FILE CONTENTS
================================================

================================================
FILE: CHANGELOG.md
================================================


================================================
FILE: README.md
================================================
# ZKTeco - Laravel Library #

[![Issues](https://img.shields.io/github/issues/raihanafroz/zkteco?style=flat-square)](https://github.com/raihanafroz/zkteco/issues)
[![Forks](https://img.shields.io/github/forks/raihanafroz/zkteco?style=flat-square)](https://github.com/raihanafroz/zkteco/network/members)
[![Stars](https://img.shields.io/github/stars/raihanafroz/zkteco?style=flat-square)](https://github.com/raihanafroz/zkteco/stargazers)
[![Total Downloads](https://img.shields.io/packagist/dt/rats/zkteco?style=flat-square)](https://packagist.org/packages/rats/zkteco)
[![License](https://poser.pugx.org/rats/zkteco/license.svg)](https://packagist.org/packages/rats/zkteco)


The `rats/zkteco` package provides easy to use functions to ZKTeco Device activities.

__Requires:__  **Laravel** >= **6.0**

__License:__ MIT or later

## Installation:
You can install the package via composer:

``` bash
composer require rats/zkteco
```
The package will automatically register itself.

You have to enable your php socket if it is not enable. 


## Usage

1. Create a object of ZKTeco class.

```php
    use Rats\Zkteco\Lib\ZKTeco;

//  1 s't parameter is string $ip Device IP Address
//  2 nd  parameter is integer $port Default: 4370
  
    $zk = new ZKTeco('192.168.1.201');
    
//  or you can use with port
//    $zk = new ZKTeco('192.168.1.201', 8080);
    
```

2. Call ZKTeco methods

* __Connect__ 
```php
//    connect
//    this return bool
    $zk->connect();   
```

* __Disconnect__ 
```php
//    disconnect
//    this return bool

    $zk->disconnect();   
```

* __Enable Device__ 
```php
//    enable
//    this return bool/mixed

    $zk->enableDevice();   
```
> **NOTE**: You have to call after read/write any info of Device.

* __Disable Device__ 
```php
//    disable 
//    this return bool/mixed

    $zk->disableDevice(); 
```
> **NOTE**: You have to call before read/write any info of Device. 


* __Device Version__ 
```php
//    get device version 
//    this return bool/mixed

    $zk->version(); 
```


* __Device Os Version__ 
```php
//    get device os version 
//    this return bool/mixed

    $zk->osVersion(); 
```

* __Power Off__ 
```php
//    turn off the device 
//    this return bool/mixed

    $zk->shutdown(); 
```

* __Restart__ 
```php
//    restart the device 
//    this return bool/mixed

    $zk->restart(); 
```

* __Sleep__ 
```php
//    sleep the device 
//    this return bool/mixed

    $zk->sleep(); 
```

* __Resume__ 
```php
//    resume the device from sleep 
//    this return bool/mixed

    $zk->resume(); 
```

* __Voice Test__ 
```php
//    voice test of the device "Thank you" 
//    this return bool/mixed

    $zk->testVoice(); 
```

* __Platform__ 
```php
//    get platform 
//    this return bool/mixed

    $zk->platform(); 
```

* __Firmware Version__ 
```php
//    get firmware version
//    this return bool/mixed

    $zk->fmVersion(); 
```

* __Work Code__ 
```php
//    get work code
//    this return bool/mixed

    $zk->workCode(); 
```

* __SSR__ 
```php
//    get SSR
//    this return bool/mixed

    $zk->ssr(); 
```

* __Pin Width__ 
```php
//    get  Pin Width
//    this return bool/mixed

    $zk->pinWidth(); 
```

* __Serial Number__ 
```php
//    get device serial number
//    this return bool/mixed

    $zk->serialNumber(); 
```

* __Device Name__ 
```php
//    get device name
//    this return bool/mixed

    $zk->deviceName(); 
```

* __Get Device Time__ 
```php
//    get device time

//    return bool/mixed bool|mixed Format: "Y-m-d H:i:s"

    $zk->getTime(); 
```

* __Set Device Time__ 
```php
//    set device time
//    parameter string $t Format: "Y-m-d H:i:s"
//    return bool/mixed

    $zk->setTime(); 
```

* __Get Users__ 
```php
//    get User
//    this return array[]

    $zk->getUser(); 
```

* __Set Users__ 
```php
//    set user

//    1 s't parameter int $uid Unique ID (max 65535)
//    2 nd parameter int|string $userid ID in DB (same like $uid, max length = 9, only numbers - depends device setting)
//    3 rd parameter string $name (max length = 24)
//    4 th parameter int|string $password (max length = 8, only numbers - depends device setting)
//    5 th parameter int $role Default Util::LEVEL_USER
//    6 th parameter int $cardno Default 0 (max length = 10, only numbers

//    return bool|mixed

    $zk->setUser(); 
```

* __Clear All Admin__ 
```php
//    remove all admin
//    return bool|mixed

    $zk->clearAdmin(); 
```

* __Clear All Users__ 
```php
//    remove all users
//    return bool|mixed

    $zk->clearAdmin(); 
```

* __Remove A User__ 
```php
//    remove a user by $uid
//    parameter integer $uid
//    return bool|mixed

    $zk->removeUser(); 
```

* __Get Attendance Log__ 
```php
//    get attendance log

//    return array[]

//    like as 0 => array:5 [▼
//              "uid" => 1      /* serial number of the attendance */
//              "id" => "1"     /* user id of the application */
//              "state" => 1    /* the authentication type, 1 for Fingerprint, 4 for RF Card etc */
//              "timestamp" => "2020-05-27 21:21:06" /* time of attendance */
//              "type" => 255   /* attendance type, like check-in, check-out, overtime-in, overtime-out, break-in & break-out etc. if attendance type is none of them, it gives  255. */
//              ]

    $zk->getAttendance(); 
```

* __Clear Attendance Log__ 
```php
//    clear attendance log

//    return bool/mixed

    $zk->clearAttendance(); 
```







# end


================================================
FILE: composer.json
================================================
{
    "name": "rats/zkteco",
    "description": "ZKTeco Laravel Library",
    "type": "library",
    "license": "MIT",
    "authors": [
        {
            "name": "Raihan Afroz",
            "email": "raihanafroz9@gmail.com"
        }
    ],
    "autoload": {
      "psr-4":{
          "Rats\\Zkteco\\": "src"
      }
    },
    "minimum-stability": "dev",
    "require": {}
}


================================================
FILE: src/Lib/Helper/Attendance.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\ZKTeco;

class Attendance
{
    /**
     * @param ZKTeco $self
     * @return array [uid, id, state, timestamp]
     */
    static public function get(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_ATT_LOG_RRQ;
        $command_string = '';

        $session = $self->_command($command, $command_string, Util::COMMAND_TYPE_DATA);
        if ($session === false) {
            return [];
        }

        $attData = Util::recData($self);

        $attendance = [];
        if (!empty($attData)) {
            $attData = substr($attData, 10);

            while (strlen($attData) > 40) {
                $u = unpack('H78', substr($attData, 0, 39));

                $u1 = hexdec(substr($u[1], 4, 2));
                $u2 = hexdec(substr($u[1], 6, 2));
                $uid = $u1 + ($u2 * 256);
                $id = hex2bin(substr($u[1], 8, 18));
                $id = str_replace(chr(0), '', $id);
                $state = hexdec(substr($u[1], 56, 2));
                $timestamp = Util::decodeTime(hexdec(Util::reverseHex(substr($u[1], 58, 8))));
                $type = hexdec(Util::reverseHex(substr($u[1], 66, 2 )));
				
                $attendance[] = [
                    'uid' => $uid,
                    'id' => $id,
                    'state' => $state,
                    'timestamp' => $timestamp,
                    'type' => $type
                ];

                $attData = substr($attData, 40);
            }

        }

        return $attendance;
    }

    /**
     * @param ZKTeco $self
     * @return bool|mixed
     */
    static public function clear(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_CLEAR_ATT_LOG;
        $command_string = '';

        return $self->_command($command, $command_string);
    }
}


================================================
FILE: src/Lib/Helper/Connect.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\Helper\Util;
use Rats\Zkteco\Lib\ZKTeco;
use ErrorException;
use Exception;

class Connect
{
    /**
     * @param ZKTeco $self
     * @return bool
     */
    static public function connect(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_CONNECT;
        $command_string = '';
        $chksum = 0;
        $session_id = 0;
        $reply_id = -1 + Util::USHRT_MAX;

        $buf = Util::createHeader($command, $chksum, $session_id, $reply_id, $command_string);

        socket_sendto($self->_zkclient, $buf, strlen($buf), 0, $self->_ip, $self->_port);

        try {
            @socket_recvfrom($self->_zkclient, $self->_data_recv, 1024, 0, $self->_ip, $self->_port);
            if (strlen($self->_data_recv) > 0) {
                $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6', substr($self->_data_recv, 0, 8));

                $session = hexdec($u['h6'] . $u['h5']);
                if (empty($session)) {
                    return false;
                }

                $self->_session_id = $session;
                return Util::checkValid($self->_data_recv);
            } else {
                return false;
            }
        } catch (ErrorException $e) {
            return false;
        } catch (Exception $e) {
            return false;
        }
    }

    /**
     * @param ZKTeco $self
     * @return bool
     */
    static public function disconnect(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_EXIT;
        $command_string = '';
        $chksum = 0;
        $session_id = $self->_session_id;

        $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6/H2h7/H2h8', substr($self->_data_recv, 0, 8));
        $reply_id = hexdec($u['h8'] . $u['h7']);

        $buf = Util::createHeader($command, $chksum, $session_id, $reply_id, $command_string);


        socket_sendto($self->_zkclient, $buf, strlen($buf), 0, $self->_ip, $self->_port);
        try {
            @socket_recvfrom($self->_zkclient, $self->_data_recv, 1024, 0, $self->_ip, $self->_port);

            $self->_session_id = 0;
            return Util::checkValid($self->_data_recv);
        } catch (ErrorException $e) {
            return false;
        } catch (Exception $e) {
            return false;
        }
    }
}

================================================
FILE: src/Lib/Helper/Device.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\ZKTeco;

class Device
{
  /**
   * @param ZKTeco $self
   * @return bool|mixed
   */
  static public function name(ZKTeco $self)
  {
    $self->_section = __METHOD__;

    $command = Util::CMD_DEVICE;
    $command_string = '~DeviceName';

    return $self->_command($command, $command_string);
  }

  /**
   * @param ZKTeco $self
   * @return bool|mixed
   */
  static public function enable(ZKTeco $self)
  {
    $self->_section = __METHOD__;

    $command = Util::CMD_ENABLE_DEVICE;
    $command_string = '';

    return $self->_command($command, $command_string);
  }

  /**
   * @param ZKTeco $self
   * @return bool|mixed
   */
  static public function disable(ZKTeco $self)
  {
    $self->_section = __METHOD__;

    $command = Util::CMD_DISABLE_DEVICE;
    $command_string = chr(0) . chr(0);

    return $self->_command($command, $command_string);
  }

  /**
   * @param ZKTeco $self
   * @return bool|mixed *** this will turn off the device
   */
  public static function powerOff(ZKTeco $self)
  {
    $self->_section = __METHOD__;

    $command = Util::CMD_POWEROFF;
    $command_string = chr(0) . chr(0);
    return $self->_command($command, $command_string);
  }


  /**
   * @param ZKTeco $self
   * @return bool|mixed *** this will restart the device
   */
  public static function restart(ZKTeco $self)
  {
    $self->_section = __METHOD__;

    $command = Util::CMD_RESTART;
    $command_string = chr(0) . chr(0);
    return $self->_command($command, $command_string);
  }


  /**
   * @param ZKTeco $self
   * @return bool|mixed *** this will sleep the device
   */
  public static function sleep(ZKTeco $self)
  {
    $self->_section = __METHOD__;

    $command = Util::CMD_SLEEP;
    $command_string = chr(0) . chr(0);
    return $self->_command($command, $command_string);
  }


  /**
   * @param ZKTeco $self
   * @return bool|mixed *** this will resume the device from sleep
   */
  public static function resume(ZKTeco $self)
  {
    $self->_section = __METHOD__;

    $command = Util::CMD_RESUME;
    $command_string = chr(0) . chr(0);
    return $self->_command($command, $command_string);
  }


  /**
   * @param ZKTeco $self
   * @return bool|mixed *** this will play voice "Thank you"
   */
  public static function testVoice(ZKTeco $self)
  {
    $self->_section = __METHOD__;

    $command = Util::CMD_TESTVOICE;
    $command_string = chr(0) . chr(0);
    return $self->_command($command, $command_string);
  }


  /**
   * @param ZKTeco $self
   * @return bool|mixed *** this will clear the LCD screen
   */
  public static function clearLCD(ZKTeco $self)
  {
    $self->_section = __METHOD__;

    $command = Util::CMD_CLEAR_LCD;
    return $self->_command($command, '');
  }


  /**
   * @param ZKTeco $self
   * @param $rank *** Line number of text
   * @param $text *** Text which will display in the LCD screen
   * @return bool|mixed *** this will write text into the LCD
   */
  public static function writeLCD(ZKTeco $self, $rank, $text)
  {
    $self->_section = __METHOD__;

    $command = Util::CMD_WRITE_LCD;
    $byte1 = chr((int)($rank % 256));
    $byte2 = chr((int)($rank >> 8));
    $byte3 = chr(0);
    $command_string = $byte1.$byte2.$byte3.' '.$text;
    return $self->_command($command, $command_string);
  }
}

================================================
FILE: src/Lib/Helper/Face.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\ZKTeco;

class Face
{
    /**
     * @param ZKTeco $self
     * @return bool|mixed
     */
    static public function on(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_DEVICE;
        $command_string = 'FaceFunOn';

        return $self->_command($command, $command_string);
    }
}



================================================
FILE: src/Lib/Helper/Fingerprint.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\ZKTeco;

class Fingerprint
{
    /**
     * TODO: Can get data, but don't know how to parse the data. Need more documentation about it...
     *
     * @param ZKTeco $self
     * @param integer $uid Unique Employee ID in ZK device
     * @return array Binary fingerprint data array (where key is finger ID (0-9))
     */
    static public function get(ZKTeco $self, $uid)
    {
        $self->_section = __METHOD__;

        $data = [];
        //fingers of the hands
        for ($i = 0; $i <= 9; $i++) {
          $finger = new Fingerprint();
            $tmp = $finger->_getFinger($self, $uid, $i);
            if ($tmp['size'] > 0) {
                $data[$i] = $tmp['tpl'];
            }
            unset($tmp);
        }
        return $data;
    }


    /**
     * @param ZKTeco $self
     * @param integer $uid Unique Employee ID in ZK device
     * @param integer $finger Finger ID (0-9)
     * @return array
     */
    private function _getFinger(ZKTeco $self, $uid, $finger)
    {
        $command = Util::CMD_USER_TEMP_RRQ;
        $byte1 = chr((int)($uid % 256));
        $byte2 = chr((int)($uid >> 8));
        $command_string = $byte1 . $byte2 . chr($finger);

        $ret = [
            'size' => 0,
            'tpl' => ''
        ];

        $session = $self->_command($command, $command_string, Util::COMMAND_TYPE_DATA);
        if ($session === false) {
            return $ret;
        }

        $data = Util::recData($self, 10, false);

        if (!empty($data)) {
            $templateSize = strlen($data);
            $prefix = chr($templateSize % 256) . chr(round($templateSize / 256)) . $byte1 . $byte2 . chr($finger) . chr(1);
            $data = $prefix . $data;
            if (strlen($templateSize) > 0) {
                $ret['size'] = $templateSize;
                $ret['tpl'] = $data;
            }
        }

        return $ret;
    }

    /**
     * TODO: Still can not set fingerprint. Need more documentation about it...
     *
     * @param ZKTeco $self
     * @param int $uid Unique Employee ID in ZK device
     * @param array $data Binary fingerprint data array (where key is finger ID (0-9) same like returned array from 'get' method)
     * @return int Count of added fingerprints
     */
    static public function set(ZKTeco $self, $uid, array $data)
    {
        $self->_section = __METHOD__;


        $count = 0;
        foreach ($data as $finger => $item) {
            $allowSet = true;
            $fingerPrint = new Fingerprint();
            if ($fingerPrint->_checkFinger($self, $uid, $finger) === true) {
                $allowSet = $fingerPrint->_removeFinger($self, $uid, $finger);
            }
            if ($allowSet === true && $fingerPrint->_setFinger($self, $item) === true) {
                $count++;
            }
        }

        return $count;
    }

    /**
     * @param ZKTeco $self
     * @param string $data Binary fingerprint data item
     * @return bool|mixed
     */
    private function _setFinger(ZKTeco $self, $data)
    {
        $command = Util::CMD_USER_TEMP_WRQ;
        $command_string = $data;

        return $self->_command($command, $command_string);
    }

    /**
     * @param ZKTeco $self
     * @param int $uid Unique Employee ID in ZK device
     * @param array $data Fingers ID array (0-9)
     * @return int Count of deleted fingerprints
     */
    static public function remove(ZKTeco $self, $uid, array $data)
    {
        $self->_section = __METHOD__;

        $count = 0;
        foreach ($data as $finger) {
          $fingerPrint = new Fingerprint();
            if ($fingerPrint->_checkFinger($self, $uid, $finger) === true) {
                if ($fingerPrint->_removeFinger($self, $uid, $finger) === true) {
                    $count++;
                }
            }
        }

        return $count;
    }

    /**
     * @param ZKTeco $self
     * @param int $uid Unique Employee ID in ZK device
     * @param int $finger Finger ID (0-9)
     * @return bool
     */
    private function _removeFinger(ZKTeco $self, $uid, $finger)
    {
        $command = Util::CMD_DELETE_USER_TEMP;
        $byte1 = chr((int)($uid % 256));
        $byte2 = chr((int)($uid >> 8));
        $command_string = ($byte1 . $byte2) . chr($finger);

        $self->_command($command, $command_string);
        $fingerPrint = new Fingerprint();
        return !($fingerPrint->_checkFinger($self, $uid, $finger));
    }

    /**
     * @param ZKTeco $self
     * @param int $uid Unique Employee ID in ZK device
     * @param int $finger Finger ID (0-9)
     * @return bool Returned true if exist
     */
    private function _checkFinger(ZKTeco $self, $uid, $finger)
    {
      $fingerPrint = new Fingerprint();
        $res = $fingerPrint->_getFinger($self, $uid, $finger);
        return (bool)($res['size'] > 0);
    }
}

================================================
FILE: src/Lib/Helper/Os.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\ZKTeco;

class Os
{
    /**
     * @param ZKTeco $self
     * @return bool|mixed
     */
    static public function get(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_DEVICE;
        $command_string = '~OS';

        return $self->_command($command, $command_string);
    }
}

================================================
FILE: src/Lib/Helper/Pin.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\ZKTeco;

class Pin
{
    /**
     * @param ZKTeco $self
     * @return bool|mixed
     */
    static public function width(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_DEVICE;
        $command_string = '~PIN2Width';

        return $self->_command($command, $command_string);
    }
}

================================================
FILE: src/Lib/Helper/Platform.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\ZKTeco;

class Platform
{
    /**
     * @param ZKTeco $self
     * @return bool|mixed
     */
    static public function get(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_DEVICE;
        $command_string = '~Platform';

        return $self->_command($command, $command_string);
    }

    /**
     * @param ZKTeco $self
     * @return bool|mixed
     */
    static public function getVersion(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_DEVICE;
        $command_string = '~ZKFPVersion';

        return $self->_command($command, $command_string);
    }
}

================================================
FILE: src/Lib/Helper/SerialNumber.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\ZKTeco;

class SerialNumber
{
    /**
     * @param ZKTeco $self
     * @return bool|mixed
     */
    static public function get(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_DEVICE;
        $command_string = '~SerialNumber';

        return $self->_command($command, $command_string);
    }
}

================================================
FILE: src/Lib/Helper/Ssr.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\ZKTeco;

class Ssr
{
    /**
     * @param ZKTeco $self
     * @return bool|mixed
     */
    static public function get(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_DEVICE;
        $command_string = '~SSR';

        return $self->_command($command, $command_string);
    }
}

================================================
FILE: src/Lib/Helper/Time.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\ZKTeco;

class Time
{
    /**
     * @param ZKTeco $self
     * @param string $t Format: "Y-m-d H:i:s"
     * @return bool|mixed
     */
    static public function set(ZKTeco $self, $t)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_SET_TIME;
        $command_string = pack('I', Util::encodeTime($t));

        return $self->_command($command, $command_string);
    }

    /**
     * @param ZKTeco $self
     * @return bool|mixed
     */
    static public function get(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_GET_TIME;
        $command_string = '';

        $ret = $self->_command($command, $command_string);

        if ($ret) {
            return Util::decodeTime(hexdec(Util::reverseHex(bin2hex($ret))));
        } else {
            return false;
        }
    }
}

================================================
FILE: src/Lib/Helper/User.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\ZKTeco;

class User
{
    /**
     * @param ZKTeco $self
     * @param int $uid Unique ID (max 65535)
     * @param int|string $userid (max length = 9, only numbers - depends device setting)
     * @param string $name (max length = 24)
     * @param int|string $password (max length = 8, only numbers - depends device setting)
     * @param int $role Default Util::LEVEL_USER
     * @param int $cardno Default 0 (max length = 10, only numbers)
     * @return bool|mixed
     */
    static public function set(ZKTeco $self, $uid, $userid, $name, $password, $role = Util::LEVEL_USER, $cardno = 0)
    {
        $self->_section = __METHOD__;

        if (
            (int)$uid === 0 ||
            (int)$uid > Util::USHRT_MAX ||
            strlen($userid) > 9 ||
            strlen($name) > 24 ||
            strlen($password) > 8 ||
            strlen($cardno) > 10
        ) {
            return false;
        }

        $command = Util::CMD_SET_USER;
        $byte1 = chr((int)($uid % 256));
        $byte2 = chr((int)($uid >> 8));
        $cardno = hex2bin(Util::reverseHex(dechex($cardno)));

        $command_string = implode('', [
            $byte1,
            $byte2,
            chr($role),
            str_pad($password, 8, chr(0)),
            str_pad($name, 24, chr(0)),
            str_pad($cardno, 4, chr(0)),
            str_pad(chr(1), 9, chr(0)),
            str_pad($userid, 9, chr(0)),
            str_repeat(chr(0), 15)
        ]);
//        die($command_string);
        return $self->_command($command, $command_string);
    }

    /**
     * @param ZKTeco $self
     * @return array [userid, name, cardno, uid, role, password]
     */
    static public function get(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_USER_TEMP_RRQ;
        $command_string = chr(Util::FCT_USER);

        $session = $self->_command($command, $command_string, Util::COMMAND_TYPE_DATA);
        if ($session === false) {
            return [];
        }

        $userData = Util::recData($self);

        $users = [];
        if (!empty($userData)) {
            $userData = substr($userData, 11);

            while (strlen($userData) > 72) {
                $u = unpack('H144', substr($userData, 0, 72));

                $u1 = hexdec(substr($u[1], 2, 2));
                $u2 = hexdec(substr($u[1], 4, 2));
                $uid = $u1 + ($u2 * 256);
                $cardno = hexdec(substr($u[1], 78, 2) . substr($u[1], 76, 2) . substr($u[1], 74, 2) . substr($u[1], 72, 2)) . ' ';
                $role = hexdec(substr($u[1], 6, 2)) . ' ';
                $password = hex2bin(substr($u[1], 8, 16)) . ' ';
                $name = hex2bin(substr($u[1], 24, 74)) . ' ';
                $userid = hex2bin(substr($u[1], 98, 72)) . ' ';

                //Clean up some messy characters from the user name
                $password = explode(chr(0), $password, 2);
                $password = $password[0];
                $userid = explode(chr(0), $userid, 2);
                $userid = $userid[0];
                $name = explode(chr(0), $name, 3);
                $name = utf8_encode($name[0]);
                $cardno = str_pad($cardno, 11, '0', STR_PAD_LEFT);

                if ($name == '') {
                    $name = $userid;
                }

                $users[$userid] = [
                    'uid' => $uid,
                    'userid' => $userid,
                    'name' => $name,
                    'role' => intval($role),
                    'password' => $password,
                    'cardno' => $cardno,
                ];

                $userData = substr($userData, 72);
            }
        }

        return $users;
    }

    /**
     * @param ZKTeco $self
     * @return bool|mixed
     */
    static public function clear(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_CLEAR_DATA;
        $command_string = '';

        return $self->_command($command, $command_string);
    }

    /**
     * @param ZKTeco $self
     * @return bool|mixed
     */
    static public function clearAdmin(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_CLEAR_ADMIN;
        $command_string = '';

        return $self->_command($command, $command_string);
    }

    /**
     * @param ZKTeco $self
     * @param integer $uid
     * @return bool|mixed
     */
    static public function remove(ZKTeco $self, $uid)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_DELETE_USER;
        $byte1 = chr((int)($uid % 256));
        $byte2 = chr((int)($uid >> 8));
        $command_string = ($byte1 . $byte2);

        return $self->_command($command, $command_string);
    }
}

================================================
FILE: src/Lib/Helper/Util.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\ZKTeco;

class Util
{
  const USHRT_MAX = 65535;

  const CMD_CONNECT = 1000; # Connections requests
  const CMD_EXIT = 1001; # Disconnection requests
  const CMD_ENABLE_DEVICE = 1002; # Ensure the machine to be at the normal work condition
  const CMD_DISABLE_DEVICE = 1003; # Make the machine to be at the shut-down condition, generally demonstrates ‘in the work ...’on LCD

  const CMD_RESTART = 1004; # Restart the machine
  const CMD_POWEROFF = 1005; # Turn Off the machine
  const CMD_SLEEP = 1006; # Sleep the machine
  const CMD_RESUME = 1007; # Resume the machine from Sleep
  const CMD_TEST_TEMP = 1011;
  const CMD_TESTVOICE = 1017; # Voice test to the device
  const CMD_CHANGE_SPEED = 1101;


  const CMD_WRITE_LCD = 66; # Write in LCD
  const CMD_CLEAR_LCD = 67; # Clear LCD

  const CMD_ACK_OK = 2000; # Return value for order perform successfully
  const CMD_ACK_ERROR = 2001; # Return value for order perform failed
  const CMD_ACK_DATA = 2002; # Return data
  const CMD_ACK_UNAUTH = 2005; # Connection unauthorized

  const CMD_PREPARE_DATA = 1500; # Prepares to transmit the data
  const CMD_DATA = 1501; # Transmit a data packet
  const CMD_FREE_DATA = 1502; # Clear machines open buffer

  const CMD_USER_TEMP_RRQ = 9; # Read some fingerprint template or some kind of data entirely
  const CMD_ATT_LOG_RRQ = 13; # Read all attendance record
  const CMD_CLEAR_DATA = 14; # Clear Data
  const CMD_CLEAR_ATT_LOG = 15; # Clear attendance records

  const CMD_GET_TIME = 201; # Obtain the machine time
  const CMD_SET_TIME = 202; # Set machines time

  const CMD_VERSION = 1100; # Obtain the firmware edition
  const CMD_DEVICE = 11; # Read in the machine some configuration parameter

  const CMD_SET_USER = 8; # Upload the user information (from PC to terminal).
  const CMD_USER_TEMP_WRQ = 10; # Upload some fingerprint template
  const CMD_DELETE_USER = 18; # Delete some user
  const CMD_DELETE_USER_TEMP = 19; # Delete some fingerprint template
  const CMD_CLEAR_ADMIN = 20; # Cancel the manager

  const LEVEL_USER = 0; # User level as User
  const LEVEL_ADMIN = 14; # User level as Admin

  const FCT_ATTLOG = 1;
  const FCT_WORKCODE = 8;
  const FCT_FINGERTMP = 2;
  const FCT_OPLOG = 4;
  const FCT_USER = 5;
  const FCT_SMS = 6;
  const FCT_UDATA = 7;

  const COMMAND_TYPE_GENERAL = 'general';
  const COMMAND_TYPE_DATA = 'data';

  const ATT_STATE_FINGERPRINT = 1;
  const ATT_STATE_PASSWORD = 0;
  const ATT_STATE_CARD = 2;

  const ATT_TYPE_CHECK_IN = 0;
  const ATT_TYPE_CHECK_OUT = 1;
  const ATT_TYPE_OVERTIME_IN = 4;
  const ATT_TYPE_OVERTIME_OUT = 5;

  /**
   * Encode a timestamp send at the timeclock
   * copied from zkemsdk.c - EncodeTime
   *
   * @param string $t Format: "Y-m-d H:i:s"
   * @return int
   */
  static public function encodeTime($t)
  {
    $timestamp = strtotime($t);
    $t = (object)[
      'year' => (int)date('Y', $timestamp),
      'month' => (int)date('m', $timestamp),
      'day' => (int)date('d', $timestamp),
      'hour' => (int)date('H', $timestamp),
      'minute' => (int)date('i', $timestamp),
      'second' => (int)date('s', $timestamp),
    ];

    $d = (($t->year % 100) * 12 * 31 + (($t->month - 1) * 31) + $t->day - 1) *
      (24 * 60 * 60) + ($t->hour * 60 + $t->minute) * 60 + $t->second;

    return $d;
  }

  /**
   * Decode a timestamp retrieved from the timeclock
   * copied from zkemsdk.c - DecodeTime
   *
   * @param int|string $t
   * @return false|string Format: "Y-m-d H:i:s"
   */
  static public function decodeTime($t)
  {
    $second = $t % 60;
    $t = $t / 60;

    $minute = $t % 60;
    $t = $t / 60;

    $hour = $t % 24;
    $t = $t / 24;

    $day = $t % 31 + 1;
    $t = $t / 31;

    $month = $t % 12 + 1;
    $t = $t / 12;

    $year = floor($t + 2000);

    $d = date('Y-m-d H:i:s', strtotime(
      $year . '-' . $month . '-' . $day . ' ' . $hour . ':' . $minute . ':' . $second
    ));

    return $d;
  }

  /**
   * @param string $hex
   * @return string
   */
  static public function reverseHex($hex)
  {
    $tmp = '';

    for ($i = strlen($hex); $i >= 0; $i--) {
      $tmp .= substr($hex, $i, 2);
      $i--;
    }

    return $tmp;
  }

  /**
   * Checks a returned packet to see if it returned self::CMD_PREPARE_DATA,
   * indicating that data packets are to be sent
   * Returns the amount of bytes that are going to be sent
   *
   * @param ZKTeco $self
   * @return bool|number
   */
  static public function getSize(ZKTeco $self)
  {
    $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6/H2h7/H2h8', substr($self->_data_recv, 0, 8));
    $command = hexdec($u['h2'] . $u['h1']);

    if ($command == self::CMD_PREPARE_DATA) {
      $u = unpack('H2h1/H2h2/H2h3/H2h4', substr($self->_data_recv, 8, 4));
      $size = hexdec($u['h4'] . $u['h3'] . $u['h2'] . $u['h1']);
      return $size;
    } else {
      return false;
    }
  }

  /**
   * This function calculates the chksum of the packet to be sent to the
   * time clock
   * Copied from zkemsdk.c
   *
   * @inheritdoc
   */
  static public function createChkSum($p)
  {
    $l = count($p);
    $chksum = 0;
    $i = $l;
    $j = 1;
    while ($i > 1) {
      $u = unpack('S', pack('C2', $p['c' . $j], $p['c' . ($j + 1)]));

      $chksum += $u[1];

      if ($chksum > self::USHRT_MAX) {
        $chksum -= self::USHRT_MAX;
      }
      $i -= 2;
      $j += 2;
    }

    if ($i) {
      $chksum = $chksum + $p['c' . strval(count($p))];
    }

    while ($chksum > self::USHRT_MAX) {
      $chksum -= self::USHRT_MAX;
    }

    if ($chksum > 0) {
      $chksum = -($chksum);
    } else {
      $chksum = abs($chksum);
    }

    $chksum -= 1;
    while ($chksum < 0) {
      $chksum += self::USHRT_MAX;
    }

    return pack('S', $chksum);
  }

  /**
   * This function puts a the parts that make up a packet together and
   * packs them into a byte string
   *
   * @inheritdoc
   */
  static public function createHeader($command, $chksum, $session_id, $reply_id, $command_string)
  {
    $buf = pack('SSSS', $command, $chksum, $session_id, $reply_id) . $command_string;

    $buf = unpack('C' . (8 + strlen($command_string)) . 'c', $buf);

    $u = unpack('S', self::createChkSum($buf));

    if (is_array($u)) {
      $u = reset($u);
    }
    $chksum = $u;

    $reply_id += 1;

    if ($reply_id >= self::USHRT_MAX) {
      $reply_id -= self::USHRT_MAX;
    }

    $buf = pack('SSSS', $command, $chksum, $session_id, $reply_id);

    return $buf . $command_string;

  }

  /**
   * Checks a returned packet to see if it returned Util::CMD_ACK_OK,
   * indicating success
   *
   * @inheritdoc
   */
  static public function checkValid($reply)
  {
    $u = unpack('H2h1/H2h2', substr($reply, 0, 8));

    $command = hexdec($u['h2'] . $u['h1']);
    /** TODO: Some device can return 'Connection unauthorized' then should check also */
    if ($command == self::CMD_ACK_OK || $command == self::CMD_ACK_UNAUTH) {
      return true;
    } else {
      return false;
    }
  }

  /**
   * Get User Role string
   * @param integer $role
   * @return string
   */
  static public function getUserRole($role)
  {
    switch ($role) {
      case self::LEVEL_USER:
        $ret = 'User';
        break;
      case self::LEVEL_ADMIN:
        $ret = 'Admin';
        break;
      default:
        $ret = 'Unknown';
    }

    return $ret;
  }

  /**
   * Get Attendance State string
   * @param integer $state
   * @return string
   */
  static public function getAttState($state)
  {
    switch ($state) {
      case self::ATT_STATE_FINGERPRINT:
        $ret = 'Fingerprint';
        break;
      case self::ATT_STATE_PASSWORD:
        $ret = 'Password';
        break;
      case self::ATT_STATE_CARD:
        $ret = 'Card';
        break;
      default:
        $ret = 'Unknown';
    }

    return $ret;
  }

  /**
   * Get Attendance Type string
   * @param integer $type
   * @return string
   */
  static public function getAttType($type)
  {
    switch ($type) {
      case self::ATT_TYPE_CHECK_IN:
        $ret = 'Check-in';
        break;
      case self::ATT_TYPE_CHECK_OUT:
        $ret = 'Check-out';
        break;
      case self::ATT_TYPE_OVERTIME_IN:
        $ret = 'Overtime-in';
        break;
      case self::ATT_TYPE_OVERTIME_OUT:
        $ret = 'Overtime-out';
        break;
      default:
        $ret = 'Undefined';
    }

    return $ret;
  }

  /**
   * Receive data from device
   * @param ZKTeco $self
   * @param int $maxErrors
   * @param bool $first if 'true' don't remove first 4 bytes for first row
   * @return string
   */
  static public function recData(ZKTeco $self, $maxErrors = 10, $first = true)
  {
    $data = '';
    $bytes = self::getSize($self);

    if ($bytes) {
      $received = 0;
      $errors = 0;

      while ($bytes > $received) {
        $ret = @socket_recvfrom($self->_zkclient, $dataRec, 1032, 0, $self->_ip, $self->_port);

        if ($ret === false) {
          if ($errors < $maxErrors) {
            //try again if false
            $errors++;
            sleep(1);
            continue;
          } else {
            //return empty if has maximum count of errors
            self::logReceived($self, $received, $bytes);
            unset($data);
            return '';
          }
        }

        if ($first === false) {
          //The first 4 bytes don't seem to be related to the user
          $dataRec = substr($dataRec, 8);
        }

        $data .= $dataRec;
        $received += strlen($dataRec);

        unset($dataRec);
        $first = false;
      }

      //flush socket
      @socket_recvfrom($self->_zkclient, $dataRec, 1024, 0, $self->_ip, $self->_port);
      unset($dataRec);
    }

    return $data;
  }

  /**
   * @param ZKTeco $self
   * @param int $received
   * @param int $bytes
   */
  static private function logReceived(ZKTeco $self, $received, $bytes)
  {
    self::logger($self, 'Received: ' . $received . ' of ' . $bytes . ' bytes');
  }

  /**
   * Write log
   * @param ZKTeco $self
   * @param string $str
   */
  static private function logger(ZKTeco $self, $str)
  {
    if (defined('ZK_LIB_LOG')) {
      //use constant if defined
      $log = ZK_LIB_LOG;
    } else {
      $dir = dirname(dirname(__FILE__));
      $log = $dir . '/logs/error.log';
    }

    $row = '<' . $self->_ip . '> [' . date('d.m.Y H:i:s') . '] ';
    $row .= (empty($self->_section) ? '' : '(' . $self->_section . ') ');
    $row .= $str;
    $row .= PHP_EOL;

    file_put_contents($log, $row, FILE_APPEND);
  }
}


================================================
FILE: src/Lib/Helper/Version.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;;

use Rats\Zkteco\Lib\Helper\Util;
use Rats\Zkteco\Lib\ZKTeco;

class Version
{
    /**
     * @param ZKTeco $self
     * @return bool|mixed
     */
    static public function get(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_VERSION;
        $command_string = '';

        return $self->_command($command, $command_string);
    }
}

================================================
FILE: src/Lib/Helper/WorkCode.php
================================================
<?php

namespace Rats\Zkteco\Lib\Helper;

use Rats\Zkteco\Lib\ZKTeco;

class WorkCode
{
    /**
     * @param ZKTeco $self
     * @return bool|mixed
     */
    static public function get(ZKTeco $self)
    {
        $self->_section = __METHOD__;

        $command = Util::CMD_DEVICE;
        $command_string = 'WorkCode';

        return $self->_command($command, $command_string);
    }
}


================================================
FILE: src/Lib/ZKTeco.php
================================================
<?php

namespace Rats\Zkteco\Lib;

use ErrorException;
use Exception;
use Rats\Zkteco\Lib\Helper\Attendance;
use Rats\Zkteco\Lib\Helper\Device;
use Rats\Zkteco\Lib\Helper\Face;
use Rats\Zkteco\Lib\Helper\Fingerprint;
use Rats\Zkteco\Lib\Helper\Os;
use Rats\Zkteco\Lib\Helper\Pin;
use Rats\Zkteco\Lib\Helper\Platform;
use Rats\Zkteco\Lib\Helper\SerialNumber;
use Rats\Zkteco\Lib\Helper\Ssr;
use Rats\Zkteco\Lib\Helper\Time;
use Rats\Zkteco\Lib\Helper\User;
use Rats\Zkteco\Lib\Helper\Util;
use Rats\Zkteco\Lib\Helper\Connect;
use Rats\Zkteco\Lib\Helper\Version;
use Rats\Zkteco\Lib\Helper\WorkCode;


class ZKTeco{
  public $_ip;
  public $_port;
  public $_zkclient;

  public $_data_recv = '';
  public $_session_id = 0;
  public $_section = '';

  /**
   * ZKLib constructor.
   * @param string $ip Device IP
   * @param integer $port Default: 4370
   */
  public function __construct($ip, $port = 4370)
  {
    $this->_ip = $ip;
    $this->_port = $port;

    $this->_zkclient = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);

    $timeout = array('sec' => 60, 'usec' => 500000);
    socket_set_option($this->_zkclient, SOL_SOCKET, SO_RCVTIMEO, $timeout);

  }

  /**
   * Create and send command to device
   *
   * @param string $command
   * @param string $command_string
   * @param string $type
   * @return bool|mixed
   */
  public function _command($command, $command_string, $type = Util::COMMAND_TYPE_GENERAL)
  {
    $chksum = 0;
    $session_id = $this->_session_id;

    $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6/H2h7/H2h8', substr($this->_data_recv, 0, 8));
    $reply_id = hexdec($u['h8'] . $u['h7']);

    $buf = Util::createHeader($command, $chksum, $session_id, $reply_id, $command_string);

    socket_sendto($this->_zkclient, $buf, strlen($buf), 0, $this->_ip, $this->_port);

    try {
      @socket_recvfrom($this->_zkclient, $this->_data_recv, 1024, 0, $this->_ip, $this->_port);

      $u = unpack('H2h1/H2h2/H2h3/H2h4/H2h5/H2h6', substr($this->_data_recv, 0, 8));

      $ret = false;
      $session = hexdec($u['h6'] . $u['h5']);

      if ($type === Util::COMMAND_TYPE_GENERAL && $session_id === $session) {
        $ret = substr($this->_data_recv, 8);
      } else if ($type === Util::COMMAND_TYPE_DATA && !empty($session)) {
        $ret = $session;
      }

      return $ret;
    } catch (ErrorException $e) {
      return false;
    } catch (Exception $e) {
      return false;
    }
  }

  /**
   * Connect to device
   *
   * @return bool
   */
  public function connect()
  {
    return Connect::connect($this);
  }

  /**
   * Disconnect from device
   *
   * @return bool
   */
  public function disconnect()
  {
    return Connect::disconnect($this);
  }

  /**
   * Get device version
   *
   * @return bool|mixed
   */
  public function version()
  {
    return Version::get($this);
  }

  /**
   * Get OS version
   *
   * @return bool|mixed
   */
  public function osVersion()
  {
    return Os::get($this);
  }

  /**
   * Get platform
   *
   * @return bool|mixed
   */
  public function platform()
  {
    return Platform::get($this);
  }

  /**
   * Get firmware version
   *
   * @return bool|mixed
   */
  public function fmVersion()
  {
    return Platform::getVersion($this);
  }

  /**
   * Get work code
   *
   * @return bool|mixed
   */
  public function workCode()
  {
    return WorkCode::get($this);
  }

  /**
   * Get SSR
   *
   * @return bool|mixed
   */
  public function ssr()
  {
    return Ssr::get($this);
  }

  /**
   * Get pin width
   *
   * @return bool|mixed
   */
  public function pinWidth()
  {
    return Pin::width($this);
  }

  /**
   * @return bool|mixed
   */
  public function faceFunctionOn()
  {
    return Face::on($this);
  }

  /**
   * Get device serial number
   *
   * @return bool|mixed
   */
  public function serialNumber()
  {
    return SerialNumber::get($this);
  }

  /**
   * Get device name
   *
   * @return bool|mixed
   */
  public function deviceName()
  {
    return Device::name($this);
  }

  /**
   * Disable device
   *
   * @return bool|mixed
   */
  public function disableDevice()
  {
    return Device::disable($this);
  }

  /**
   * Enable device
   *
   * @return bool|mixed
   */
  public function enableDevice()
  {
    return Device::enable($this);
  }

  /**
   * Get users data
   *
   * @return array [userid, name, cardno, uid, role, password]
   */
  public function getUser()
  {
    return User::get($this);
  }

  /**
   * Set user data
   *
   * @param int $uid Unique ID (max 65535)
   * @param int|string $userid ID in DB (same like $uid, max length = 9, only numbers - depends device setting)
   * @param string $name (max length = 24)
   * @param int|string $password (max length = 8, only numbers - depends device setting)
   * @param int $role Default Util::LEVEL_USER
   * @param int $cardno Default 0 (max length = 10, only numbers)
   * @return bool|mixed
   */
  public function setUser($uid, $userid, $name, $password, $role = Util::LEVEL_USER, $cardno = 0)
  {
    return User::set($this, $uid, $userid, $name, $password, $role, $cardno);
  }



  /**
   * Remove All users
   *
   * @return bool|mixed
   */
  public function clearUsers()
  {
    return User::clear($this);
  }

  /**
   * Remove admin
   *
   * @return bool|mixed
   */
  public function clearAdmin()
  {
    return User::clearAdmin($this);
  }

  /**
   * Remove user by UID
   *
   * @param integer $uid
   * @return bool|mixed
   */
  public function removeUser($uid)
  {
    return User::remove($this, $uid);
  }



  /**
   * Get fingerprint data array by UID
   * TODO: Can get data, but don't know how to parse the data. Need more documentation about it...
   *
   * @param integer $uid Unique ID (max 65535)
   * @return array Binary fingerprint data array (where key is finger ID (0-9))
   */
  public function getFingerprint($uid)
  {
    return Fingerprint::get($this, $uid);
  }

  /**
   * Set fingerprint data array
   * TODO: Still can not set fingerprint. Need more documentation about it...
   *
   * @param integer $uid Unique ID (max 65535)
   * @param array $data Binary fingerprint data array (where key is finger ID (0-9) same like returned array from 'getFingerprint' method)
   * @return int Count of added fingerprints
   */
  public function setFingerprint($uid, array $data)
  {
    return Fingerprint::set($this, $uid, $data);
  }

  /**
   * Remove fingerprint by UID and fingers ID array
   *
   * @param integer $uid Unique ID (max 65535)
   * @param array $data Fingers ID array (0-9)
   * @return int Count of deleted fingerprints
   */
  public function removeFingerprint($uid, array $data)
  {
    return Fingerprint::remove($this, $uid, $data);
  }


  /**
   * Get attendance log
   *
   * @return array [uid, id, state, timestamp]
   */
  public function getAttendance()
  {
    return Attendance::get($this);
  }

  /**
   * Clear attendance log
   *
   * @return bool|mixed
   */
  public function clearAttendance()
  {
    return Attendance::clear($this);
  }

  /**
   * Set device time
   *
   * @param string $t Format: "Y-m-d H:i:s"
   * @return bool|mixed
   */
  public function setTime($t)
  {
    return Time::set($this, $t);
  }

  /**
   * Get device time
   *
   * @return bool|mixed Format: "Y-m-d H:i:s"
   */
  public function getTime()
  {
    return Time::get($this);
  }


  /**
   * turn off the device
   *
   * @return bool|mixed
   */
  public function shutdown()
  {
    return Device::powerOff($this);
  }

  /**
   * restart the device
   *
   * @return bool|mixed
   */
  public function restart()
  {
    return Device::restart($this);
  }


  /**
   * make sleep mood the device
   *
   * @return bool|mixed
   */
  public function sleep()
  {
    return Device::sleep($this);
  }


  /**
   * resume the device from sleep
   *
   * @return bool|mixed
   */
  public function resume()
  {
    return Device::resume($this);
  }


  /**
   * voice test Sound will "Thank you"
   *
   * @return bool|mixed
   */
  public function testVoice()
  {
    return Device::testVoice($this);
  }


  public function clearLCD()
  {
    return Device::clearLCD($this);
  }


  public function writeLCD()
  {
    return Device::writeLCD($this, 2, "RAIHAN Afroz Topu");
  }
}

================================================
FILE: src/Providers/ZktecoServiceProvider.php
================================================
<?php

namespace Rats\Zkteco\Providers;

use Illuminate\Support\ServiceProvider;

class ZktecoServiceProvider extends ServiceProvider {

  public function boot(){
//    dd("Zkteco is running");
  }

  public function register(){

  }
}