I'm new in PHP so I have trouble with make simple sign up form. My issue is that when I would like to sign up every data is send to my db except password. Where is the error? 

My db is mySQL. Try few times user\_pwd has no output in my db...

php singup form:

```
<form class="signup-form" action="includes/signup.inc.php" method="POST">
            <input type="text" name="first" placeholder="Name">
            <input type="text" name="last" placeholder="Surname">
            <input type="text" name="email" placeholder="E-mail">
            <input type="text" name="uid" placeholder="ID">
            <input type="password" name="pwd" placeholder="Password">
            <button type="submit" name="submit">Sing up</button>
        </form>

```

php - singup.inc.php:

```
<?php

if(isset($_POST['submit'])){
    include_once 'db.php';

    $first = mysqli_real_escape_string($conn,$_POST['first']);
    $last = mysqli_real_escape_string($conn,$_POST['last']);
    $email = mysqli_real_escape_string($conn,$_POST['email']);
    $uid = mysqli_real_escape_string($conn,$_POST['uid']);
    $pwd = mysqli_real_escape_string($conn,$_POST['pwd']);
    // error handlers
    // all fields not empty
    if(empty($first) || empty($last) || empty($email) || empty($uid) || empty($pwd) ){
        header("Location: ../signup.php?signup=empty");
        exit();
    }
    else{
        // check spelling
        if(!preg_match("/^[a-zA-z]*$/", $first) || !preg_match("/^[a-zA-z]*$/", $last)){
            header("Location: ../signup.php?signup=invalid");
        exit();
        }
        else{
            if(!filter_var($email, FILTER_VALIDATE_EMAIL)){
        header("Location: ../signup.php?signup=email");
        exit();
            }
            else{
                $sql = "SELECT * FROM users WHERE user_uid = '$uid'";
                $result = mysqli_query($conn, $sql);
                $resultCheck = mysqli_num_rows($result);
                if($resultCheck>0){
                    header("Location: ../signup.php?signup=usertaken");
                    exit();
                }else{
                    $hashedPwd = password_hash($pwd, PASSWORD_DEFALUT);
                    $sql = "INSERT INTO users (user_first, user_last, user_email, user_uid, user_pwd) VALUES ('$first', '$last', '$email', '$uid', '$hashedPwd');";
                    mysqli_query($conn, $sql);
                    header("Location: ../signup.php?signup=success");
                    exit();
                }
            }
        }
    }
}
else{
    header("Location: ../signup.php");
    exit();
}

```