<?php
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
/* Connection */

try {
     $db = new PDO("mysql:host=localhost;dbname=kurye_fiyatlama", "root", "qweASD123");
} catch ( PDOException $e ){
     print $e->getMessage();
}

$stmt = $db->prepare("select * from users_table WHERE username=:username and password=:password");
$stmt->execute(['username' => $username, 'password' => $password]);
$user = $stmt->fetch();

foreach ($data as $user) {
    if($_POST["username"] = $data["username"] && password_verify($_POST["password"], $data["password"])){
        header('Location: dataentry.php');
    }
}


?>