$fieldsets->key()
Returns the current key
$fieldsets->key(): string|int|null
Return type
string|int|null
Parent class
Kirby\Cms\Fieldsets inherited from Kirby\Toolkit\Iterator
Returns the current key
$fieldsets->key(): string|int|null
string|int|null
Kirby\Cms\Fieldsets inherited from Kirby\Toolkit\Iterator