Untitled

<?php
require "DB.inc.php";
unset($erroruser);
$erroruser = array('nam' => 'Please enter name!', 'characters' => 'Name must be longer than 3 characters!', 'mail' => 'Please enter e-mail!', 'country' => 'Please enter country!');
$vuz = $pdo ->prepare("SELECT country FROM cities");
$vuz ->execute();

$row = $vuz->fetchAll(PDO::FETCH_ASSOC);

if ($_SERVER['REQUEST_METHOD'] == 'POST'){

    $name = trim(strip_tags($_POST['name']));
    $email = trim(strip_tags($_POST['email']));
    $country = $_POST['count'];
    if(!empty($name)){
        if(mb_strLen($name)>3){
            if (!empty($email)) {
                if (!empty($country)) {

                    if (filter_var($email, FILTER_VALIDATE_EMAIL)) {
                        /*print_r($count);*/
                        $vuz = $pdo->prepare("INSERT INTO users (name, email, country)
    VALUES (?,?,?)");
                        $vuz->bindParam(1, $name);
                        $vuz->bindParam(2, $email);
                        $vuz->bindParam(3, $country);
                        $vuz->execute();
                        header('Location: Index.php');
                        exit;
                    }
                } else {
                    echo $erroruser['country'];
                    }
            } else {
                echo $erroruser['mail'];
                }
        } else {
            echo $erroruser['characters'];
            }
    } else {
        echo $erroruser['nam'];
        }
}
?>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Form user</title>
    <link rel='stylesheet' type='text/css' href='style.css'/>
</head>
<body>
<div>
<form action="<?php echo $_SERVER["REQUEST_URI"]?>" method="POST" enctype="multipart/form-data">
    <p>
    <input <?php /*if(!empty($erroruser['nam'])){echo "style='border: red 1px solid;'";}*/?> type="text" name="name" placeholder="name" >
    </p>
    <p>
    <input class='text' type="email" name="email" placeholder="e-mail" >
    </p>
    <p>
        <select class='text' name="count">
            <option value="">select country</option>
            <?php

                        foreach ($row as $item) {
            print "<option  value=".$item['country'].'>'.$item['country']."</option>";
            }
            ?>
        </select>
    </p>
    <p>
    <input type="submit" value="add user">
    </p>
</form>
    </div>
</body>
</html>