Untitled

<?php
//start session
if (!isset($_SESSION)){
    session_start();
}
include_once "functions.php";
//call function to check if the username is free - if no - ask for new username
$error_message = "";

if (isset($_POST, $_POST["username"])) {

    if (isUsernameFree($_POST["username"])){

        //call function to create user and set this data in session
        $user = createUser($_POST, $_FILES);
        if (is_array($user)){
            $_SESSION["user"] = $user;
            header("Location: dashboard.php");
        }
        else {
            $error_message = $user;
        }

    }
    else {
        $error_message = "This username is not free.";
    }
} else {

}

?>

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>register</title>
    <link rel="stylesheet" href="register.css">
</head>
<body>
<header>Welcome to MySvalka</header>
<!--
form with require fields for:
username
password
e-mail
age - must be positive number
gender - male or female
looking for - male, female or both of them
something about - less than 100 characters
profile picture

register button - if press it - go to dashboard page
-->
<div id="forms">
    <div><?php echo $error_message;?></div>
    <form action="register.php" method="post" enctype="multipart/form-data">

        <label for="username">Username: </label>
        <input type="text" name="username" required value="<?php if (isset($_POST, $_POST["username"])) echo htmlentities($_POST['username']);?>"> <br><br>

        <label for="password">Password:&nbsp;</label>
        <input type="password" name="password" required value="<?php if (isset($_POST, $_POST["password"])) echo htmlentities($_POST['password']);?>"> <br><br>

        <label for="email">E-mail:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</label>
        <input type="email" name="email" required value="<?php if (isset($_POST, $_POST["email"])) echo htmlentities($_POST['email']);?>"> <br><br>

        <label for="age">Age:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</label>
        <input type="number" name="age" min="0" max="105" required value="<?php if (isset($_POST, $_POST["age"])) echo htmlentities($_POST['age']);?>"> <br><br>


        <label for="gender">Gender:&nbsp;&nbsp;&nbsp;&nbsp;</label>
        <select name="gender">
            <option value="">Select</option>
            <option value="male" <?php if (isset($_POST, $_POST["gender"]) && $_POST["gender"] == "male") echo "selected";?>>Male</option>
            <option value="female" <?php if (isset($_POST, $_POST["gender"]) && $_POST["gender"] == "female") echo "selected";?>>Female</option>
        </select>
        <br><br>


        <label for="lookingfor">Looking for: </label>
        <select name="lookingfor">
            <option value="">Select</option>
            <option value="male" <?php if (isset($_POST, $_POST["lookingfor"]) && $_POST["lookingfor"] == "male") echo "selected";?>>Male</option>
            <option value="female" <?php if (isset($_POST, $_POST["lookingfor"]) && $_POST["lookingfor"] == "female") echo "selected";?>>Female</option>
            <option value="both" <?php if (isset($_POST, $_POST["lookingfor"]) && $_POST["lookingfor"] == "both") echo "selected";?>>Both</option>
        </select>
        <br><br>


        <label for="info">Tell something about you: </label>
        <input type="text" name="info" maxlength="100" required value="<?php if (isset($_POST, $_POST["info"])) echo htmlentities($_POST['info']);?>"> <br><br>

        <label for="image">Upload image: </label>
        <input type="file" name="image"> <br><br>

        <input type="submit" name="register" value="Register ">
    </form>
</div>

<footer>Enjoy</footer>
</body>
</html>