How to rewrite the initial array and remove items by the ID in the view with Smarty?

Question

I’m using the View rendering library with Smarty.

In my view, I have an output with the product information array inside a foreach:

{assign var='remove_products' [712, 716, 717, 718, 719, 720, 745, 755, 758]}
  {foreach from=$products item=product name=products}
    {if !in_array($product.id_product, $remove_products)}
        {$product.id_product|escape:'htmlall':'UTF-8'}
        {$product.name|escape:'htmlall':'UTF-8'}
        {$product.legend|escape:'htmlall':'UTF-8'}
        <!-- OBS: gostaria de salvar todos os dados acima
                em um novo array e usar a coleção novamente abaixo
        -->
    {/if}
  {/foreach]}  

 <!-- usando a coleção (nova) só que com os itens removidos -->

 {$products}     

How could I do that. Does anyone know? I tried to do this but it didn’t roll:

   {assign var='remove_products' [712, 716, 717, 718, 719, 720, 745, 755, 758]}
    {assign var='n_products' []}
    {foreach $products as $key => $value}
        {if !in_array($value.id_product, $remove_products)}
            {$n_products[$key] = $value}   
        {/if}
    {/foreach}
    {$products = $n_products}

Answer 1

If you are actually using Smarty 2, there is no cool way to do this, you need to do what you should not, which is to use the php tag within the template.

{php} 
    $this->assign("remove_products", array(712, 716, 717, 718, 719, 720, 745, 755, 758)); 
{/php}

Based on: How to assign an array Within a Smarty template file?

Answer 2

I managed to solve the problem by doing so:

 {if isset($products)}
    {assign var='remove_products' [712, 716, 717, 718, 719, 720, 745, 755, 758]}
    {assign var='n_products' []}
    {foreach from=$products key=key item=product name=products}
       {if !in_array($product.id_product, $remove_products)}
           {$n_products[$key] = $product}
       {/if}
    {/foreach}
 {$products = $n_products}
{/if}