Вставка многомерного массива перед последней строкой другого многомерного массива

Предположим, у меня есть два многомерных массива:

1. Master Array ($ _SESSION [‘Trials’])
2. Временный массив ($ currentTrial)

Я хочу вставить временный массив в предпоследнюю строку / позицию мастер-массива. Имейте в виду, что оба они многомерны и имеют такой формат:

(
[Stimuli] => Array
(
[Cue] => apple
[Answer] => orange
[Shuffle] => on
[Stimuli Notes] => blank
)

[Procedure] => Array
(
[Item] => 3
[Trial Type] => Copy
[Timing] => User
[Post 1 Trial Type] => off
[Post 1 Timing] => User
[Text] =>
[Procedure Notes] =>
[Shuffle] => phase1
[Settings] =>
[Post 1 Text] =>
)

[Response] => Array
(
[Accuracy] =>
[RT] =>
[RTkey] =>
[RTlast] =>
[Response] =>
[lenientAcc] =>
[strictAcc] =>
)

)

Пока что я сделал это:

$countArray = count($_SESSION['Trials']);
$minusOne = $countArray-1;
array_splice($_SESSION['Trials'], $minusOne, 0, $currentTrial);

Точка вставки верна, но она не сохранила формат временного массива (и вместо этого разбила каждый меньший массив из временного массива на новые элементы) и выглядит следующим образом:

[5] => Array
(
[Cue] => hadithi
[Answer] => story
[Shuffle] => LithuanianEnglish
[Stimuli Notes] => 0.04-Hard
)

[6] => Array
(
[Item] => 2
[Trial Type] => CritTest
[Max Time] => computer
[Min Time] => -
[Procedure Notes] => Criterion Test Trial
[Shuffle] => Session1Phase2
[Text] =>
)

[7] => Array
(
[RT] =>
[Response] =>
[Accuracy] =>
[RTfirst] =>
[RTlast] =>
[strictAcc] =>
[lenientAcc] =>
[focus] =>
)

Я хочу, чтобы каждый из этих массивов (5, 6 и 7) имел форматирование выше с массивом для [Stimuli], [Процедура] и [Ответ]. Я хочу, чтобы все это было в позиции 5 Master Array.

Спасибо за любую помощь!

редактировать:

Короче говоря, у меня есть этот текущий массив (я пропустил пункты 0-4, но это то же самое):

[4] => Array
(
[Stimuli] => Array
(
[Cue] => gharika
[Answer] => flood
[Shuffle] => LithuanianEnglish
[Stimuli Notes] => 0.04-Hard
)

[Procedure] => Array
(
[Item] => 3
[Trial Type] => CritTest
[Max Time] => computer
[Min Time] => -
[Procedure Notes] => Criterion Test Trial
[Shuffle] => Session1Phase2
[Text] =>
)

[Response] => Array
(
[RT] =>
[Response] =>
[Accuracy] =>
[RTfirst] =>
[RTlast] =>
[strictAcc] =>
[lenientAcc] =>
[focus] =>
)

)

[5] => Array
(
[Cue] => hadithi
[Answer] => story
[Shuffle] => LithuanianEnglish
[Stimuli Notes] => 0.04-Hard
)

[6] => Array
(
[Item] => 2
[Trial Type] => CritTest
[Max Time] => computer
[Min Time] => -
[Procedure Notes] => Criterion Test Trial
[Shuffle] => Session1Phase2
[Text] =>
)

[7] => Array
(
[RT] =>
[Response] =>
[Accuracy] =>
[RTfirst] =>
[RTlast] =>
[strictAcc] =>
[lenientAcc] =>
[focus] =>
)

[8] => Array
(
[Stimuli] => Array
(
[Cue] => gharika
[Answer] => flood
[Shuffle] => LithuanianEnglish
[Stimuli Notes] => 0.04-Hard
)

[Procedure] => Array
(
[Item] => ExperimentFinished
[Trial Type] => CritTest
[Max Time] => computer
[Min Time] => -
[Procedure Notes] => Criterion Test Trial
[Shuffle] => Session1Phase2
[Text] =>
)

[Response] => Array
(
[RT] =>
[Response] =>
[Accuracy] =>
[RTfirst] =>
[RTlast] =>
[strictAcc] =>
[lenientAcc] =>
[focus] =>
)

)

)

Я хочу, чтобы это выглядело так:

  [4] => Array
(
[Stimuli] => Array
(
[Cue] => gharika
[Answer] => flood
[Shuffle] => LithuanianEnglish
[Stimuli Notes] => 0.04-Hard
)

[Procedure] => Array
(
[Item] => 3
[Trial Type] => CritTest
[Max Time] => computer
[Min Time] => -
[Procedure Notes] => Criterion Test Trial
[Shuffle] => Session1Phase2
[Text] =>
)

[Response] => Array
(
[RT] =>
[Response] =>
[Accuracy] =>
[RTfirst] =>
[RTlast] =>
[strictAcc] =>
[lenientAcc] =>
[focus] =>
)

)

[5] => Array
(
[Stimuli] => Array
[Cue] => hadithi
[Answer] => story
[Shuffle] => LithuanianEnglish
[Stimuli Notes] => 0.04-Hard
)

[Procedure] => Array
[Item] => 2
[Trial Type] => CritTest
[Max Time] => computer
[Min Time] => -
[Procedure Notes] => Criterion Test Trial
[Shuffle] => Session1Phase2
[Text] =>
)
[Response] => Array
[RT] =>
[Response] =>
[Accuracy] =>
[RTfirst] =>
[RTlast] =>
[strictAcc] =>
[lenientAcc] =>
[focus] =>
)

[6] => Array
(
[Stimuli] => Array
(
[Cue] => gharika
[Answer] => flood
[Shuffle] => LithuanianEnglish
[Stimuli Notes] => 0.04-Hard
)

[Procedure] => Array
(
[Item] => ExperimentFinished
[Trial Type] => CritTest
[Max Time] => computer
[Min Time] => -
[Procedure Notes] => Criterion Test Trial
[Shuffle] => Session1Phase2
[Text] =>
)

[Response] => Array
(
[RT] =>
[Response] =>
[Accuracy] =>
[RTfirst] =>
[RTlast] =>
[strictAcc] =>
[lenientAcc] =>
[focus] =>
)

)

)

Обратите внимание, что элемент № 5 имеет сохраненный массив для стимулов, процедур и ответов. В настоящее время он разбивается на 5:

1. 5 = стимулы
2. 6 = процедура
3. 7 = Ответ

Я хочу, чтобы все это в # 5 и # 6 оставалось последним элементом в массиве master. Я хочу добавить $ currentTrial в основной массив и сохранить тот же многомерный формат.