每个用变量键获取一个值

Question

I find it hard to explain but my page has a multidimensional array with all the users and I need to get values from the inner arrays without knowing the main key.

I'm not as experienced with arrays yet and I'm completely stuck right now. The function I use has 2 parameters. The first one is the input id of the user and the second is the array of the complete user list.

function userInfo($i, $users){
    foreach($users['data'] as $user){
        if($i = $user['id']){
            return $user['SOMENAME?']['name'];
        }
    }
}

Here is a example of the array I'm working with:

{
   "data": {
      "Doe": {
         "id": 266,
         "title": "Doe title",
         "name": "Doe",
         "key": "Some key"
      },
      "John": {
         "id": 412,
         "title": "John title",
         "name": "John",
         "key": "Some key"
      }
}

The function I have now simply returns Doe (The first value in the array) no matter how much arrays are in there.

How do I return the title or any of the other values when I don't know the name of the main key for that specific array?

Answer 1

There is an error in your if statement, where you are assigning a value, not ccomparing it (= vs == or ===).

For the purpose of your function, I don't think you need to know the key, because you're already in the array. eg.

 function championInfo($i, $users){
     foreach($users['data'] as $index => $user){
        if($i == $user['id']){
            return $user['name'];
        }
    }
}