如果声明PHP

Question

In this code, the first and second controls don't work!

My idea is that if one of the fiels is empty, there's an error. In other word, all the fields are expect.

if(!empty($nome) && !empty($cognome) == 0)
    header("location: ./content_reg_comeunprodigio_no.html");
else if($dati_pers == 'n')
    header("location: ./content_reg_comeunprodigio_trattamentodati.html");
else
{
    $query = "INSERT INTO persons_comeunprodigio (nome, cognome)
                  VALUES ('$nome', '$cognome')";

    mysqli_query($db, $query) or die(mysqli_error());

    header("location: ./content_reg_comeunprodigio_ok.html");
}

Thank u in advance!

Answer 1

Change the if to

if(empty($nome) || empty($cognome) {

}

if you are testing for empty fields. If the fields are not empty, !empty() will return true in either case (>0) and you are expecting an equality of 0, which I think is the opposite of your intent.

You do not give enough information about $dati_pers to analyze.

Answer 2

Best I can tell, your comparison !empty($nome) && !empty($cognome) == 0 is the culprit. Because !empty($cognome) will only == 0 if $cognome is not empty... probably not what you want.

You might try replacing your if/else if/else block with two if blocks. Added die(); after the header, so PHP processing stops. You can keep your if/else if/else block as the commenter suggests if you like.

if( empty($nome) || empty($cognome) ){
    // $nome or $cognome is empty
    header("location: ./content_reg_comeunprodigio_no.html");
    die();
}
if($dati_pers == 'n') {
    header("location: ./content_reg_comeunprodigio_trattamentodati.html");
    die();
}

$query = "INSERT INTO persons_comeunprodigio (nome, cognome)
              VALUES ('$nome', '$cognome')";

mysqli_query($db, $query) or die(mysqli_error());

header("location: ./content_reg_comeunprodigio_ok.html");