How to get the index of an array of sessions? – cakephp

Friends, I have an array where I need to get the index dynamically to be able to delete the specific session.

I tried to link the delete button like this in cart.ctp:

   <html>
  <body>
    <!--Main layout-->
    <main class="mt-1 pt-1">
      <div class="container wow fadeIn">

        <!-- Heading -->

        <div class="row">
          <!--Grid column-->
          <div class="col-md-8 mb-4">

            <!--Card-->
            <div class="card">

              <?php foreach($this->Session->read('cart') as $cart): ?>

              <div class="container">
                <div class="row">

                  <div class="col-md-10">
                    <table class="table table-striped">
                      <thead>
                        <tr>
                          <th scope="col">product</th>
                          <th scope="col">PREÇO</th>
                          <th scope="col">Qte</th>
                          <th scope="col">SUBTOTAL</th>
                        </tr>
                      </thead>
                      <tbody>
                        <tr>
                          <th scope="row">
                            <?= $cart->has('product') ? $this->Html->link($cart->product->nome_product, ['controller' => 'products', 'action' => '/', $cart->product->id]) : '' ?>
                          </th>
                          <td>
                            <strong>R$ <?php echo number_format($cart->product->price, 2, ',', '') ?></strong>
                          </td>
                          <td>
                            <strong><?php echo $cart->quantity; ?> un.</strong>
                          </td>
                          <td>
                            <strong>
                              R$ <?php 
                              $sub = ($cart->product->preco * $cart->quantidade);
                              echo number_format($sub, 2, ',', '');
                              ?>
                            </strong>
                          </td>
                        </tr>
                      </tbody>
                    </table>
                    <hr width="40%">
                  </div>
                </div>
              </div> 


            <div class="row">

             <div class="col-md-9">
             </div>
             <div class="col-md-1 mt-3">


             </div>
             <div class="col-md-1 mt-3">
              <?= $this->Html->link(__('Remove'), ['action' => 'remove', $cart->index]); ?>

            </div>
            <div class="col-md-1">
            </div>
          </div>

          <?php endforeach; ?>
          <br>
        </div>
        <!--/.Card-->

      </div>
      <!--Grid column-->

      <!--Grid column-->
      <div class="col-md-4 mb-4">


        <!-- Promo code -->
        <form class="card p-2">

          <?php echo $this->Form->end(); ?>

        </div>
        <!--Grid column-->

      </div>
      <!--Grid row-->

    </div>
  </main>
  <!--Main layout-->

</body>
</html>

JavaScript
​x
 
   <html>  <body>    <!--Main layout-->    <main class="mt-1 pt-1">      <div class="container wow fadeIn">​        <!-- Heading -->​        <div class="row">          <!--Grid column-->          <div class="col-md-8 mb-4">​            <!--Card-->            <div class="card">​              <?php foreach($this->Session->read('cart') as $cart): ?>​              <div class="container">                <div class="row">​                  <div class="col-md-10">                    <table class="table table-striped">                      <thead>                        <tr>                          <th scope="col">product</th>                          <th scope="col">PREÇO</th>                          <th scope="col">Qte</th>                          <th scope="col">SUBTOTAL</th>                        </tr>                      </thead>                      <tbody>                        <tr>                          <th scope="row">                            <?= $cart->has('product') ? $this->Html->link($cart->product->nome_product, ['controller' => 'products', 'action' => '/', $cart->product->id]) : '' ?>                          </th>                          <td>                            <strong>R$ <?php echo number_format($cart->product->price, 2, ',', '') ?></strong>                          </td>                          <td>                            <strong><?php echo $cart->quantity; ?> un.</strong>                          </td>                          <td>                            <strong>                              R$ <?php                               $sub = ($cart->product->preco * $cart->quantidade);                              echo number_format($sub, 2, ',', '');                              ?>                            </strong>                          </td>                        </tr>                      </tbody>                    </table>                    <hr width="40%">                  </div>                </div>              </div> ​​            <div class="row">​             <div class="col-md-9">             </div>             <div class="col-md-1 mt-3">​​             </div>             <div class="col-md-1 mt-3">              <?= $this->Html->link(__('Remove'), ['action' => 'remove', $cart->index]); ?>​            </div>            <div class="col-md-1">            </div>          </div>​          <?php endforeach; ?>          <br>        </div>        <!--/.Card-->​      </div>      <!--Grid column-->​      <!--Grid column-->      <div class="col-md-4 mb-4">​​        <!-- Promo code -->        <form class="card p-2">​          <?php echo $this->Form->end(); ?>​        </div>        <!--Grid column-->​      </div>      <!--Grid row-->​    </div>  </main>  <!--Main layout-->​</body></html>​​

The idea is to pass the $cart->index variable to the method.

public function remove($index = mull) {
.
$cart = $this->request->session();
$cart->delete->("cart.$index");
.

JavaScript
 
public function remove($index = mull) {.$cart = $this->request->session();$cart->delete->("cart.$index");.​​

But debugging ($cart->index) the value is null.

Can you help me get the session value index? (0,1,2..)

Appreciate!

Answer

Your “index” appears to not be a part of the records you have saved in your session, but rather just the array index. Your loop needs to be:

foreach($this->Session->read('cart') as $index => $cart):

JavaScript
 
foreach($this->Session->read('cart') as $index => $cart):​

And your link:

$this->Html->link(__('Remove'), ['action' => 'remove', $index]);

JavaScript
 
$this->Html->link(__('Remove'), ['action' => 'remove', $index]);​

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Answer