Creating an array within for loop with Twig

Question

I'm trying to create an array and store values in it within for loop but failed so far. How can I do it with Twig?

I've read these but being new in Twig makes it hard to convert into my case.

• Twig for loop and array with key
• How to set array value in twig template
• twig - building array in for loop
• And many more

PLAIN PHP LOGIC IS THIS:

foreach ($array as &$value)
{
   $new_array[] = $value;
}

foreach ($new_array as &$v)
{
   echo $v;
}

WHAT I'VE TRIED WITH TWIG:

{% for value in array %}
    {% set new_array = new_array|merge([value])  %}
{% endfor %}

{% for v in new_array %}
   {{ v }}
{% endfor %}

Answer 1

Solved by following Vision's suggestion:

{% set brands = [] %}
{% for car in cars %}
    {% if car not in brands %}
        {% set brands = brands|merge([car]) %}
    {% endif %}
{% endfor %}

{% for brand in brands %}
   {{ brand }}
{% endfor %}

Also I'll take bartek's comment into consideration next time. This was one off.

Answer 2

I have other solution for arrays in loop. This solution is letting you to make arrays like PHP:

$my_array[] = array('key_1' => $value1, 'key_2' => $value_2);

in this case:

{% set cars_details = [] %}
{% for car in cars %}
     <!-- This is the line of code that does the magic -->
    {% set car = car|merge({(loop.index0) : {'color': car.color, 'year': car.year} }) %}
{% endfor %}
{{ car|dump }}