login php hash and salt

<?php 

$servername = "localhost";
$username = "root";
$password = "";
$dbname = "geosafe";

// Create connection
$con = mysqli_connect($servername, $username, $password, $dbname);
// Check connection
if (!$con) {
    die("Connection failed: " . mysqli_connect_error());
}


 function doLogin($u,$p,$con){
      
     $con; 
       //  $hosteo = new Host(1);
        //$this->set_conexion($hosteo->datos['localhost'],$hosteo->datos['root'],$hosteo->datos[''],$hosteo->datos['geosafe']);

         $consulta ='SELECT u.id as llave, u.name as nombre, u.hashedPassword as hashed,u.salt as salto,u.admin as estado FROM users u WHERE u.email="'.$u.'"';
        
       // $result = $this->sql_con->query($consulta);
        $result = mysqli_query($con, $consulta);
        $dato['estado'] = false;
        if($result === false) {
          
            trigger_error('Ha ocurrido un error');
        }
        
        else{
            while ($row = mysqli_fetch_array($result, MYSQLI_ASSOC)) {
                echo  $row['hashed'].'<br>';
              $data = $p;
             //$key = sha1($p,TRUE);
              $key = hexToStr($row['salto']);

             $hashed = hash_pbkdf2('sha1',$data, $key,1000,24,true);    
             echo   strToHex($hashed);
              if (strToHex($hashed)==$row['hashed']){
                $dato['estado'] = true;
                session_start();
                $_SESSION['loginstate'] = 1;
                print_r($row);
              }
             
            }
        }
      // array_push($con,$dato);

    }
    
     function strToHex($string){
        $hex='';
        for ($i=0; $i < strlen($string); $i++){
            $hex .= dechex(ord($string[$i]));
        }
        return strtoupper($hex);
    }


     function hexToStr($hex){
        $string='';
        for ($i=0; $i < strlen($hex)-1; $i+=2){
            $string .= chr(hexdec($hex[$i].$hex[$i+1]));
        }
        return $string;
    }
    
    echo $data = doLogin('admin@demo.com', '123',$con);
    
    
?>

This is sample code witch i use and get output

  traccar database = 58F44CB8291BBDD6495BAF3587D2C6DF56C7A6A812529F0A
  OutPut          = 58F44CB8291BBDD6495BAF3587D2C6DF56C7A6A812529FA

Mihir, this is probably happening during your conversion.

Use the php function bin2hex() / hex2bin() to convert to and from HEX and a binary string.

Thank You so much . it's working perfectly .

hello mihir can help login with php my code :

session_start();
error_reporting('E_ALL');
include 'lib/db.php';


if ($_SESSION){
    header('location:page.php');
}
if (isset($_POST['masuk'])){
   
    $email = $_POST['email'];
    $userpassword = $_POST['hashedpassword'];



    $sql = "select email,hashedpassword from users where email= '$email'  ";
    $result = mysqli_query($link,$sql);
    

    while($row = mysqli_fetch_array($result))
    {
        $data = $userpassword;
        $key = hex2bin($row['salt']);
        $hashed = hash_pbkdf2('sha1',$data, $key,1000,24,true);

        if (bin2hex($hashed)==$row['hashedpassword']){
                        //session_start();
                        //$_SESSION['email'] = $email;
                    $_SESSION['hashedpassword'] = $userpassword; 
                    header('location:page.php');
                      }
    }




}

function strToHex($string){
        $hex='';
        for ($i=0; $i < strlen($string); $i++){
            $hex .= dechex(ord($string[$i]));
        }
        return strtoupper($hex);
    }

function hexToStr($hex){
        $string='';
        for ($i=0; $i < strlen($hex)-1; $i+=2){
            $string .= chr(hexdec($hex[$i].$hex[$i+1]));
        }
        return $string;
    }

Please help me ...
I want hash and salt for password using php in traccar for insert data in traccar user table.

I would recommend you to use API because if you manually insert data into the database, it won't take effect until you restart Traccar service. Traccar has internal cache.