<?php

$username = $_POST['username'];
$password = $_POST['password'];
$accounts = array(
"bolson" => "apassword",
"seanpj" => "anotherpassword",
"justin" => "penis",
);
if($username != null) {
if($password != $accounts[$username]) {
print "You Fail";
}
else {
print "I win";
}
}
?>
<form action="index.php" method="post">
<input type="text" name="username"></br>
<input type="password" name="password"></br>
<input type="submit" value="login"></br>
</form>