php - 在 foreach 循环外访问变量 PHP

Question

我是 PHP 新手。谁能告诉我如何在 foreach 之外访问 foreach 循环变量。请通过代码在下面找到。

  <?php  $categories = Mage::getModel('catalog/category')->getCollection()->addAttributeToSelect('*'); 
         foreach ($categories as $category): 
         $categorySize = $category->getSize_chart(); 
         print_r ($categorySize); 
         endforeach;
    ?>

我在下面的 html img 标签的 src 属性中需要它。

<div class="SizeChat"><p>close</p><div class="Padd"><img src="<?php echo Mage::getBaseUrl('media').'catalog/category/'.$categorySize ?>"></div></div>

Answer 1

首先定义循环上面的变量

$categorySize = array();

<?php  $categories = Mage::getModel('catalog/category')->getCollection()->addAttributeToSelect('*'); 
         foreach ($categories as $category): 
         $categorySize = $category->getSize_chart(); 
         print_r ($categorySize); 
         endforeach;
    ?>

print_r($categorySize) //Now you can get it outside the loop