A little trouble validating register form...

Having a little trouble validating the email address using FILTER_VALIDATE_EMAIL

It's outputting that the email address is in the wrong...

FORM

<form action="register.php" method="post">
<label>Username</label>
<input type="text" name="username">
<label>Email Address</label>
<input type="text" name="useremail">
<label>Password</label>
<input type="password" name="password">
<label>Repeat Password</label>
<input type="password" name="password2">
<input type="submit" class="loginsubmit" value="Register" name="submitb">
</form>

HTML:

PHP

<?php

//check if the submit button has been hit
if (isset($_POST['submitb'])) { 

//post variables from form
$useremail = $_POST["useremail"];
$username = $_POST["username"];
$password = $_POST["password"];
$password2 = $_POST["password2"];

//check if email is valid format
if (filter_var($email, FILTER_VALIDATE_EMAIL)) {

$emailcheck = "email is correct format";

}

else { 
$emailcheck = "email is incorrect format";
}


//check if both password fields contain the same password
if ($password == $password2) {
$passwordcheck = "passwords are the same";
}
else {
$passwordcheck = "passwords dont match!";
}
}
?>
<?php include"../includes/head.php";?>
<?php echo "$passwordcheck<br />$emailcheck";?>



   <?php include"../includes/footer.php";?>

PHP:

 

Oooops!

I'm trying to check $email instead of $useremail.

Solved.