如何获取会话数组的索引？ - 蛋糕PHP

Question

朋友们，我有一个数组，我需要在其中动态获取索引才能删除特定会话。

enter image description here

我试过 link cart.ctp 中的删除按钮：

   <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>

想法是将 $cart->index 变量传递给方法。

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

但是调试($cart->index)值为空

你能帮我得到会话价值指数吗？ (0,1,2..)

欣赏！

Answer 1

您的 "index" 似乎不是您在会话中保存的记录的一部分，而只是数组索引。你的循环需要是：

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

还有你的link：

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

如何获取会话数组的索引？ - 蛋糕PHP

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

php

arrays

session

cakephp