/**
* Extracts values having specific keys from the given array/object.
*
* @param array|object|null $target
* @param array $keys A list of keys to be extracted.
* @return array A map of keys to extracted values or an empty array if $target is null.
* @throws InvalidArgumentException If the target is not an array, object or null.
*/
function fields($target, array $keys)
{
if (is_array($target)) {
return array_only($target, $keys);
}
if (is_object($target)) {
return object_only($target, $keys);
}
if (is_null($target)) {
return [];
}
throw new InvalidArgumentException("Not an object or array");
}
function __debugInfo()
{
// Exclude inherited properties.
$baseProps = map((new ReflectionClass(CompositeComponent::class))->getProperties(ReflectionProperty::IS_PUBLIC), function (ReflectionProperty $p) {
return $p->getName();
});
$allProps = map((new ReflectionClass($this))->getProperties(ReflectionProperty::IS_PUBLIC), function (ReflectionProperty $p) {
return $p->getName();
});
$ownProps = array_diff($allProps, $baseProps);
return object_only($this, $ownProps);
}
