/**
* Get the resulting value of an attempt to traverse a key path.
*
* Each key in the path is separated with a dot.
*
* For example, the following snippet should return `true`:
* ```php
* Arr::dotGet([
* 'hello' => [
* 'world' => true,
* ],
* ], 'hello.world');
* ```
*
* Additionally, a default value may be provided, which will be returned if
* the path does not yield to a value.
*
* @param array $array
* @param string $key
* @param null|mixed $default
*
* @return mixed
*/
public static function dotGet(array $array, $key, $default = null)
{
if (is_null($key)) {
return $array;
}
if (isset($array[$key])) {
return $array[$key];
}
foreach (explode('.', $key) as $segment) {
if (!is_array($array) || !array_key_exists($segment, $array)) {
return Std::thunk($default);
}
$array = $array[$segment];
}
return $array;
}