I have JSON file with some id and value, and this need to be populated in form as select list:
$form['select_item'] = [ '#type' => 'select', '#options' => $list, '#title' => $this->t('Choose'), '#required' => TRUE, ];
What is the best way to approach this. Can I somehow convert this JSON in array or something and use it in options?
I would like to have this values form JSON in separate file and to use it from there.