Is there a way to get multiple checkbox value and put it in database table?

I'm trying to get variables values, surname and name, that are inside a table in the same row and there is a check box near of that row and if checked shoaled get both the information but differently so I can put them in a database table

I've tried something with php but I'm not getting out of it

I create the table in this way.

<?php
    include 'db_connect.php';
    $sql="SELECT nome, cognome FROM informazioni";
    if ($result = $db->query($sql)) {
        echo '<table border="2" align="center" id="table">';
        echo '<tr>'
        . '<th>Cognome </th>'
        . '<th>Nome</th>';

        /* fetch associative array */
        while ($row = $result->fetch_assoc()) {
            echo '<tr>
                    <td>
                        <p>'.$row['cognome'].'</p>
                    </td>
                    <td>
                        <p>'.$row['nome'].'</p>
                    </td>
                    <td>
                        <input type="checkbox" name="nome_var[]" value="'.$row['id'].'">
                    </td>
                </tr>';
        }
        echo '</table>';

        /* free result set */
        $result->free();
    }
?>

and here is what I've tried to get the checked elements but doesn't work

<?php
$nome_var = $_POST['nome_var'];
if(is_array($nome_var){
        $toinsert = "INSERT INTO pagamentiEffettuati 
                            (cognome, nome) 
                    VALUES ('$surname', '$name')";
        echo "Elementi selezionati: ".count($nome_var)."<br/>";
        echo "-> ".reset($nome_var);
        while( $elemento = next($nome_var) )echo "-> $elemento <br/>";         
}
?>

and there is what I've tried to get the checked elements but doesn't work