php Object Class Error: Creating default object from empty value [duplicate]

Question

I get the following error Creating default object from empty value... each time I attempt to add a nested object.

class api {

    private $authentication=null;
    private $status=null;
    private $response=null;

    public function __construct($user, $token) {
        $this->status->version=2.3; 
        $this->authentication->user=$user;
        $this->authentication->token=$token;
    }

}

How can I accomplish this exact thing without getting this error?

I don't want to use arrays for this particular thing.

Simon K · Accepted Answer · 2018-07-15 02:27:16Z

0

does this help you or am I misunderstanding...

public function __construct($user, $token) {
    $this->status = new stdClass(); // Here
    $this->status->version=2.3; 
    $this->authentication = new stdClass(); // & Here
    $this->authentication->user=$user;
    $this->authentication->token=$token;
}

edited Jul 15, 2018 at 2:27

answered Jul 15, 2018 at 2:22

Simon K

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5 Comments

Simon K Over a year ago

OK, my bad. Updated, but does it work?

Nikk Over a year ago

Yes it does work. Thanks. But can you explain why I have to do this?

Simon K Over a year ago

My understanding here is that $this->status and $this->authentication are set to null (not an object) so you have to cast them to an object first before assigning properties to them.

Nikk Over a year ago

How would I cast them to objects?

Simon K Over a year ago

Just handle it in the constructor as per my answer for convenience.

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