php-如何从数组对象获取值

Question

I use php code and I have a problem with getting value of an array object. When I use var_dump($arr) , I get this (the code below is formatted for better readability):

object(League\OAuth2\Client\Provider\GoogleUser)#5 (1) {
    ["response":protected]=> array(5) {
        ["emails"]=> array(1) {
            [0]=> array(1) {
                ["value"]=> string(21) "thienlam129@gmail.com"
            }
        }
        ["id"]=> string(21) "115281634466837725533"
        ["displayName"]=> string(18) "thiên lâm trần"
        ["name"]=> array(2) {
            ["familyName"]=> string(6) "trần"
            ["givenName"]=> string(11) "thiên lâm"
        }
        ["image"]=> array(1) {
            ["url"]=> string(98) "https://lh3.googleusercontent.com/-SpWfKGTcQt8/AAAAAAAAAAI/AAAAAAAAAB8/IlGQQnvy7so/photo.jpg?sz=50"
        }
    }
}

Please, tell me how to get emails value.

Answer 1

The main reason you're facing this problem is probably because the object is not an array at all.

As mentioned in the comments, the GoogleUser object has a public getEmail method which you can use to retrieve the email address.

You can use it like this:

$email = $googleUser->getEmail();

(In the above code sample I took the liberty of calling it a $googleUser rather than an $arr because it's not an arr but a google user)

Answer 2

You could cast the object as an array as such:

var_dump((array) $object);

Or

$array = (array) $object;

And access all its properties but you might have to array walk and filter the name of the class out.

But this is a hack and an example of bad practise. Accessing protected properties by its methods is the way to go or else request json object instead, if possible.

Naturally, you would say

$object = (object) $inputObject;
$value = (string) $object->getValue();

Or

$value = (array) $object->getArray();