Get Name and it's dependent ID from Array JS

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  from this code

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    Text
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      <
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• How to get pass an array through a function with a user input?

  I want to ask the user for the size of a 2D array arr[][], but also pass it through the function initializeArray. However, if I pass it through the function, I would have to have a size declarator for col, which doesn't allow the user to enter their own value for the size

    #include<iostream>
    using namespace std;
  
    void initializeArray(arr[][10], int N);
  
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• Pass Associative Array from Symfony Controller to Twig and JavaScript

  So, I have 2 arrays that I've combined into one array after making sure they're the same length as such.

  //Fetching Ratings for All Coaches & Making a Key, Value Associative Array with Coach id as Key and Rating as Value
          $coaches = $coachRepository->findAll();
          $rating = $coachRepository->findRatingByCoach();
          //Array of coach IDs
          $id_array = array();
          foreach ($coaches as $c){
              $id_array[] = $c->getId();
          }
          $combined = array_combine($id_array, $rating);
  

  Now I want to pass this key, value array to Twig template and JavaScript. I'm currently doing this

      return $this->render('...', [
          ..., 'combined'=>$combined
      ]);
  

  And I'm accessing the array in Twig as such

              {% for key, value in combined %}
                  {{ key }} - {{ value }}
              {% endfor %}
  

  And I'm getting this error.

  Object of class App\Entity\Coach could not be converted to string
  

  Looking at the Stack Trace I can see that the array combined is being passed in this form.

  'combined' => array(object(Coach))
  

  After a bit of debugging it turns out that I thought the issue was with the $id_array when in fact it's the $rating variable that's presenting an issue. I'm not sure why but I'm getting a single float value. I fixed the issue by changing how I'm fetching the $rating, now instead of using a QueryBuilder to get it from the DB, I'm getting it from list of Coaches as such

   //Array of coach IDs and array of Ratings
          $id_array = array();
          $rating_array = array();
          foreach ($coaches as $c){
              $id_array[] = $c->getId();
              $rating_array [] = $c->getRating();
          }
  

  Even if I set the array