php中的以下语法是什么意思？

Question

I am working on fixing some bug in legacy php code. I am not a PHP person. so please bear with me if this is a stupid question.

I see this line in the code:

$credentials = array("username"=>$fields->username, "password"=>$fields->password);
$this->profile->create($fields);

I don't understand what this syntax for array means?

I know this is associate array:

array("username"=>"mike","password"=>"123") will translate to

{  
"username": "mike",
"password" : "123"
}

but what the above one will translate to?

Answer 1

In the code you used for the example, $fields is an object. Then, username is a variable or property of the object. So, you end up with the array:

{
    "username": $fields->username,
    "password": $fields->password
}

If you are confused by the arrow syntax for objects, read the documentation on using objects for PHP.