Question

我有以下代码，我想以相反的顺序显示它：

                <div id="gallery-1" class="royalSlider rsDefault visibleNearby">


            <?php
            $current_item = 1;
            $imgID = 1;

            foreach( $cats as $key => $item ){

            if( !empty($cat_id) && $cat_id == $item->id ){
                $current_item = $key+1;
            }?>

              <img class="rsImg" src="<?php echo cmMedia::getOriginalUrl($item->media_id);?>" id="imgID<?php echo $imgID; ?>" />
              <a class="rsImg" href="<?php echo cmMedia::getOriginalUrl($item->media_id);?>" id="imgID<?php echo $imgID; ?>" /></a>

            <?php $imgID++; }?>



            </div>

输出是带有26个幻灯片的滑块。

我尝试用-翻转+，然后将变量从26开始设置为1，但没有成功：/

提前谢谢！

Answer 1

我认为您正在寻找array_reverse？ http://php.net/manual/en/function.array-reverse.php

<?php
  $current_item = 1;
  $imgID = 1;
  $cats = array_reverse($cats);
  //... the rest should be the same as you have

Answer 2

array_reverse很好，另一种方法是将foreach换成for倒转的循环：

for ($key = count($cats) - 1; $key >= 0; $key--) {
    $item = $cats[$key];

    // Proceed with the original code
}

如何输出列表的倒数

2 个答案: