questo è il codice spero mi potrete dare un aiuto:
index.php
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>SecurityHook</title>
<link rel="shortcut icon" href="../images/fav_icon.png" type="image/x-icon">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<link href="https://fonts.googleapis.com/css?family=Open+Sans:300,400,700" rel="stylesheet">
<!-- Bulma Version 0.9.0-->
<link rel="stylesheet" href="https://unpkg.com/[email protected]/css/bulma.min.css" />
<link rel="stylesheet" type="text/css" href="../css/landing.css">
</head>
<body>
<section class="hero is-info is-fullheight" style="background-color:#45C6AF">
<div class="logo">
<center>
<img src="logo.png" width="500px" height="auto" alt="Logo">
</center>
<span></span>
<span></span>
</span>
</div>
<div class="hero-body">
<div class="container has-text-centered">
<div class="column is-6 is-offset-3">
<h1 class="title">
Aiutaci ad aiutare la tua città
</h1>
<h2 class="subtitle">
Segnala alle forze dell'ordine atti illeciti in pochissimi secondi.
<br>
<br>
<div class="box">
<form action="connect.php" method"post">
<div class="field">
<label class="label">Nome</label>
<div class="control">
<input class="input" type="text" id="nome" placeholder="Mario" required>
</div>
</div>
<div class="field">
<label class="label">Cognome</label>
<div class="control">
<input class="input" type="text" id="cognome" placeholder="Rossi">
</div>
</div>
<label class="label">Codice Fiscale</label>
<div class="control">
<input class="input" type="text" id="cod_fiscale" placeholder="CF" required>
</div>
<div class="field">
<label class="label">Email</label>
<div class="control">
<input class="input" type="text" id="email" placeholder="[email protected]">
</div>
</div>
<label class="label">A chi è rivolta la segnalazione</label>
<div class="field has-addons">
<div class="control is-expanded">
<div class="select is-fullwidth">
<select>
<option value="Carabinieri">Carabinieri</option>
<option value="Polizia">Polizia</option>
<option value="Finazieri">Finazieri</option>
<option value="Pompieri">Pompieri</option>
<option value="Polizia Stradale">Polizia stradale</option>
</select>
</div>
</div>
</div>
<label class="label">Cos'è successo</label>
<div class="control is-expanded">
<input class="textarea" placeholder="rapina,colluttazione" id="descrizione" rows="10"required></input>
</select>
</div>
<div class="field">
<label class="label">A che ora è successo</label>
<div class="control">
<input type="time" id="orario" required>
</div>
</div>
<div class="field">
<label class="label">Dov'è successo</label>
<div class="control">
<input class="input" type="text" id="Via" placeholder="Via..">
<br>
<input class="input" type="number" id="Numcivico" placeholder="22">
<br>
<input class="input" type="text" id="Comune" placeholder="Comune">
</div>
</div>
<div class="field is-grouped">
<div class="control">
<button class="output" name="invia">Invia</button>
</div>
</div>
</form>
</div>
</a>
</p>
</div>
</div>
</div>
</div>
</div>
</section>
<script async type="text/javascript" src="../js/bulma.js"></script>
</body>
</html>
connect.php
<?php
$connessione = mysqli_connect('localhost','root','', 'securityhook');
$avviso = "";
if(isset($_POST['invia'])) {
$nome = $_POST['nome'];
$cognome = $_POST['cognome'];
$cod_fiscale = $_POST['cod_fiscale'];
$email = $_POST['email'];
$query = "INSERT INTO utente(nome,cognome,cod_fiscale,email) VALUES('{$nome}', '{cognome}','{cod_fiscale}','{email}')";
mysqli_query($connessione, $query);
$avviso = "Successo";
echo $avviso;
}else {
$avviso = "Errore";
echo $avviso;
}
?>```
mi da il seguente errore: " Warning: Undefined array key "nome" in C:\xampp\htdocs\sito\connect.php on line 9
Warning: Undefined array key "cognome" in C:\xampp\htdocs\sito\connect.php on line 10
Warning: Undefined array key "cod_fiscale" in C:\xampp\htdocs\sito\connect.php on line 11
Warning: Undefined array key "email" in C:\xampp\htdocs\sito\connect.php on line 12
* list item"