不知怎的，这个数组不是数组？

Question

The following code return some results that are baffling me...

if(is_array($loginUser)) {         
    $_SESSION['name'] = $loginUser['firstname'];
    $_SESSION['id'] = $loginUser['id'];
    print_r($_SESSION['name']);
    print_r($loginUser);
    var_dump($loginUser[1]);
    exit();
    header("Location: ../index.php?page=home");
}

That returns:

Notice: Undefined index: firstname in wwwroot/includes/userhandler.php on line 124

Notice: Undefined index: id in wwwroot/includes/userhandler.php on line 125

Array ( [0] => Array ( [0] => 4 [id] => 4 [1] => Johnny [firstname] => Johnny [2] => Appleseed [lastname] => Appleseed [3] => [e-mail] [email] => [e-mail] [4] => johnny'shashedpassword [password] => johnny'shashedpassword ) ) 

Notice: Undefined offset: 1 in wwwroot/includes/userhandler.php on line 129

NULL

Answer 1

The id and firstName are stored in an array with key 0

change

$_SESSION['name'] = $loginUser['firstname'];
$_SESSION['id'] = $loginUser['id'];

to

$_SESSION['name'] = $loginUser[0]['firstname'];
$_SESSION['id'] = $loginUser[0]['id'];

but I see no reason why the you have an extra dimension in your $loginUser array. Try to refactor the way $loginUser is building its array

Later in the code you are calling var_dump($loginUser[1]); This returns your second error message because there is only a $loginUser[0]