Errore POST

Codice PHP:

---

<form id="login" action="login/login.php" method="post">
<input id="username" type="text" placeholder="username">
<input id="password" type="password" placeholder="password">
<button type="submit">Login</button>
</form>


---

File login.php:

Codice PHP:

---

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


---

Eppure qualunque nome utente io inserisca non stampa nulla...

nel form dovresti inserire il nome del campo.

Citazione:

---

<form id="login" action="login/login.php" method="post">
<input id="username" type="text" name="username">
<input id="password" type="password" name="password">
<button type="submit">Login</button>
</form>

---

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