<style>
    table {
        border: 1px solid;
    }
    td {
        border: 1px solid;
    }
</style>
<?php
	ini_set("display_errors", 1);
    header("Content-Type: text/html; charset=UTF-8");
    Error_Reporting(E_ALL & ~E_NOTICE);
	session_start();
	$dsn = "mysql:host=localhost;dbname=test;charset=utf8";
	$opt = array (
		    PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
		    PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
    );
	$pdo = new PDO($dsn, '', '', $opt);

	$login = $pdo->query('SELECT login FROM users')->fetchAll(PDO::FETCH_COLUMN);;
	$password = $pdo->query('SELECT password FROM users')->fetchAll(PDO::FETCH_COLUMN);;
	if (isset($_POST['enter'])) {
		$data = array_map("trim", $_POST);
    	$data = array_map("strip_tags", $data);
    }
    	foreach ($login as $i => $log) {
    		foreach ($password as $j => $pass) {
    			if ($log == $data['login'] && $pass == md5($data['password'].$data['login'])) {
    			$_SESSION['login'] = $log;

    			}
    		}

    	}

	if(!isset($_SESSION['login'])){
		echo "Неверный логин и/или пароль"."<br>";
		echo "Доступ закрыт"."<br>";
		?>
		<a href="logout.php">Надо авторизироваться</a>
		<?php
	}else{
		$user = $pdo->prepare('SELECT * FROM users WHERE login = :login');
		$user->execute(array('login'=>$_SESSION['login']));
		$table = "<table><tr><td>login</td><td>password</td><td>fio</td><td>email</td><td>address</td>";
		while ($row = $user->fetch()) {
	    $table .= "<tr>";
	    $table .= "<td>".$row['login']."</td>";
	    $table .= "<td>".$row['password']."</td>";
		$table .= "<td>".$row['fio']."</td>";
		$table .= "<td>".$row['email']."</td>";
		$table .= "<td>".$row['address']."</td>";
	    $table .= "</tr>";
		}
		$table .= "</table> ";
		echo $table;
		echo "<br>";
		?>
		<a href="logout.php">Выход</a>
		<?php
	}
	echo "<br>";

?>