Convert arrays to object, preserving arrays with numeric keys

convertToObject.php

<?php

function convertToObject($array)
{
	reset($array);
	
	if ($isNumericKey = is_numeric(key($array))) {
		$object = [];
		
	} else {
		$object = new \stdClass();
	}

	foreach ($array as $key => $value) {
		if (is_array($value)) {
			$value = convertToObject($value);
		}
		
		if ($isNumericKey) {
			$object[$key] = $value;
		} else {
			$object->{$key} = $value;
		}
	}
	
	return $object;
}

$resultOne = convertToObject(["test" => "to", "pass" => "values", "on" => "object"]);
$resultTwo = convertToObject(["test", "to", "dont", "pass", "values", ["on" => ["object"=> "test level 2", "test" => ["level" => "3"]]]]);

echo "<pre>";
var_dump($resultOne);
echo "</pre>";

echo "<pre>";
var_dump($resultTwo);
echo "</pre>";