Untitled

<?php

function sanitizeFormField($inputText, $toLower = false)  {

    $inputText = strip_tags($inputText);
    $inputText = str_replace(" ", "", $inputText);
    if($toLower)
        $inputText = ucfirst(strtolower($inputText));

    return $inputText;
}

if(isset($_POST['loginButton'])) {
    //Register button has been pressed
}

if(isset($_POST["registerButton"])) {
    //Register button has been pressed

    $userName = sanitizeFormField($_POST['userName']);
    $firstName = sanitizeFormField($_POST['firstName'], true);
    $lastName = sanitizeFormField($_POST['lastName'], true);
    $email = sanitizeFormField($_POST['email'], true);
    $confirmEmail = sanitizeFormField($_POST['confirmEmail'], true);
    $password = sanitizeFormField($_POST['password']);
    $confirmPassword = sanitizeFormField($_POST['confirmPassword']);
}

?>

<html>
<head>
    <title></title>
</head>
<body>
    <div id="inputContainer">
        <form id="loginForm" action="register.php" method="POST">
            <h2>Login to your account</h2>
            <p>
                <label for="loginUsername">Username</label>
                <input id="loginUsername" name="loginUsername" type="text" placeholder="e.g. Pr3k0" required>
            </p>
            <p>
                <label for="loginPassword">Password</label>
                <input id="loginPassword" name="loginPassword" type="password" placeholder="Your password" required>
            </p>

            <button type="submit" name="loginButton">LOG IN</button>
        </form>

        <form id="registerForm" action="register.php" method="POST">
            <h2>Create your account</h2>
            <p>
                <label for="userName">Username</label>
                <input id="userName" name="userName" type="text" placeholder="e.g. Pr3k0" required>
            </p>

            <p>
                <label for="firstName">First name</label>
                <input id="firstName" name="firstName" type="text" placeholder="e.g. Istvan" required>
            </p>

            <p>
                <label for="lastName">Last name</label>
                <input id="lastName" name="lastName" type="text" placeholder="e.g. Orban" required>
            </p>

            <p>
                <label for="email">Email address</label>
                <input id="email" name="email" type="email" placeholder="e.g. istvanorban@gmail.com" required>
            </p>

            <p>
                <label for="confirmEmail">Confirm email address</label>
                <input id="confirmEmail" name="confirmEmail" type="email" placeholder="e.g. istvanorban@gmail.com" required>
            </p>

            <p>
                <label for="password">Password</label>
                <input id="password" name="password" type="password" placeholder="Your password" required>
            </p>

            <p>
                <label for="confrimPassword">Password</label>
                <input id="confirmPassword" name="password" type="password" placeholder="Your password" required>
            </p>

            <button type="submit" name="registerButton">SIGN UP</button>
        </form>
    </div>
</body>
</html>