从Array获取值作为数组键

Question

How do I recursively get value from array where I need to explode a key? I know, it's not good the question, let me explain.

I got an array

[
  "abc" => "def", 
  "hij" => [
              "klm" => "nop", 
              "qrs" => [
                          "tuv" => "wxy"
                       ]
           ]
]

So, inside a function, I pass:

function xget($section) {
    return $this->yarray["hij"][$section];
}

But when I want to get tuv value with this function, I want to make section as array, example:

To get hij.klm value (nop), I would do xget('klm'), but to get hij.klm.qrs.tuv, I can't do xget(['qrs', 'tuv']), because PHP consider $section as key, and does not recursively explode it. There's any way to do it without using some ifs and $section[$i] ?

Answer 1

function xget($section) {
    return $this->yarray["hij"][$section];
}

that one is static function right?

you can do that also for this

function xget($section) {
    if(isset($this->yarray["hij"][$section])){
         return $this->yarray["hij"][$section];
    }elseif(isset($this->yarray["hij"]["klm"]["qrs"][$section])){
         return $this->yarray["hij"]["klm"]["qrs"][$section];
    }
}

as long as the key name between two of them are not the same.