laravel required_if
$request->validate([
'daily_movement_id'=>'required_with:daily_movement',
'daily_movement'=>'required_with:daily_movement_id',
]);
//////////////////////////////////////////////////////
$request->validate([
'daily_movement_id'=>'required_without:daily_movement',
'daily_movement'=>'required_without:daily_movement_id',
]);
Laravel nutné, pokud to splňovat nějakou hodnotu z jiného pole
//Laravel required if it meet some value from another field
'booking_type' => [
'integer',
'required',
],
'booking_flight_description' => [
'required_if:booking_type,==,1' // you can use multi value by using ,
],