Untitled

<?php
if(isset($_POST['submit'])){

	$name = array("alexwawo", "barbara", "geovanta", "habib", "asril");

	$minimum = 5;
	$maximum = 10;

	$username = $_POST['username'];
	$password = $_POST['password'];

	if(strlen($username) < $minimum){
		echo "Username harus memiliki panjang 5 atau lebih";
	}

	if(strlen($username) > $maximum){
		echo "Username tidak boleh lebih panjang dari 10";
	}

	if(!in_array($username, $name)){
		echo "Maaf, akses ditolak";
	}else{
		echo "selamat datang";
	}

}
?>

<!DOCTYPE html>
<html>
<head>
	<title>PHP forms</title>
</head>
<body>

<form action="form.php" method="post">
	<input type="text" name="username" placeholder="Enter username" />
	<input type="password" name="password" placeholder="Enter password" />
	<br />
	<input type="submit" name ="submit" />
</form>

</body>
</html>