Converting string containing multidimensional array keys and values PHP

Question

I use TPP API for check domain availability and domain register but i receive response in string.

1. Get Session, return stringOK: t73484678463765

2. Domain check, return string woohoo123.nz: OK: Minimum=1&Maximum=2

3. In other case, return string woohoo123.nz: ERR: 102, This is message

When It return OK it has & in child but when ERR that time it has ,

I want convert return string into array

such as input woohoo123.nz: OK: Minimum=1&Maximum=2 and output following array

 [
     'woohoo123.nz' => [
         'OK' => [
             'Minimum' => 1,
             'Maximum' => 2,
         ]
     ]
 ]

input woohoo123.nz: ERR: 102, This is message and output following array

 [
     'woohoo123.nz' => [
         'ERR' => [
             'code' => 102,
             'message' => 'This is message',
         ]
     ]
 ]

I like more to reuse code, I prefer recursive and callback but not sure in this case.

Answer 1

Not 100% sure if this is what you are looking for. It works for your examples, but will only continue to work if the input strings follow that format strictly.

    function stringToArray($inputStr) {
    $array = [];

    $topComponents = explode(': ',$inputStr);
    $parametersStr = $topComponents[count($topComponents) -1];
    if (strpos($parametersStr,'&') !== FALSE) {
        $tmpArr = explode('&',$parametersStr);
        foreach ($tmpArr as $val) {
            $comp = explode('=',$val);
            $array[$comp[0]] = $comp[1];
        }
    } else if ($topComponents[count($topComponents) - 2] === "ERR") {
        $tmpArray = explode('ERR: ',$parametersStr);
        $tmpArray = explode(', ',$tmpArray[0]);
        $array = [
            "code" => intval($tmpArray[0]),
            "message" => $tmpArray[1]
        ];
    } else {
        $array = $parametersStr;
    }

    for ($i=count($topComponents) -2; $i >= 0; $i--) {
        $newArray = [];
        $newArray[$topComponents[$i]] = $array;
        $array = $newArray;
    }

    return $array;
}

print_r(stringToArray("OK: t73484678463765"));