baseunits | 基礎的な単位（時間や金額等）にまつわるドメインモデル群を含むクラスライブラリ

You can configure the ObjectMapper from the jackson library by calling the method setPropertyNamingStrategy(...)

Using PropertyNamingStrategy.SNAKE_CASE should resolve your problem

See also the other available strategies here : PropertyNamingStrategy

In your function printFuel($id) you are overwriting $this->amount_word with each new array value. Therefore you only get the very last value.

So just convert each amount you get in $item->fuel_qty into a text string $item->fuel_qty_str using the function convert_number_to_words() in your controller:

As the code in your example works with an hardcoded number and the view returns the concatenated string "Only ***" the problem is most likely that the model's function $this->Number_model->getNumber(); is returning an array. therefore you need to address your function to use a value from this array:

if the array (use print_r($numberToWord) to see how the array looks like) for example is:

Array ( [0] => 1234 )

we can use:

This happens because the plot bands are aligned to the category axis' steps. You currently have your chart's baseUnitStep to "auto". This causes the steps to be too far apart and your plot bands get "rounded" to the nearest steps, so to speak. Here's what you can do to work around this problem:

1. Change the baseUnitStep to 1. This will give you a precision of 1 minute for your plot bands. However this will also result in grid lines and axis labels at an interval of 1 minute, which will be slow and look horrible. We'll fix that in the following steps.
2. Add a step value of 180 (or similar) to your labels' config. This will make the category labels appear every 3 hours.
3. Add a majorGridLines configuration section and set the step of the grid lines to 180, so that they appear as frequently as the labels.
4. Add a majorTicks config section and set the step interval to 60 or something.

Your categoryAxis config section should look similar to this:

It looks like you are making it more difficult than it needs to be. I created a simpler recursive function, moved the dictionary and settings outside the function (generating a dictionary array on every function call was eating up a LOT of memory and is not necessary). I didn't include fractions but this should be a good starting point to expand off of:

I have solved this by recreating the categoryaxis in the javescript