Question

我使用这个循环从文章中提取图像，将其放入图像库..所以我想超出或忽略var $图像，如果不包含图像..换句话说，我不需要打印$ image或在画廊中留下空白空间..谢谢帮助

        <?php
                    $count = 0;
            // loop through and display format
            foreach($articles as $article):
                // stripes the table by adding a class to every other row
                $class = ( ($count % 2) ? " class='altrow'": '' );

                $regex = '/src="(.*?)"/';
  preg_match_all($regex, $article['Article']['content'], $matches);
  $matches = $matches[1];
  foreach($matches as &$match)
     $match = substr($match, strrpos($match, '/') + 1);
    $image  =(implode($matches ));
            ?>

    <li>    <?php
    if(isset($image) && $image != ""){
  e( $html->link( $html->image(image ,array('height'=>'75px', 'width'=>'75px')),array('action' => 'view', $article['Article']['id']),array('escape' => false)));
  }else{

/// What is supposed to put here ///


  }
   ?></li>



            <?php endforeach; ?>

Answer 1

您需要if语句来检查图像是否为空。如果是，请使用此处描述和演示的continue语句：http://php.net/manual/en/control-structures.continue.php

继续关键字将跳转到下一个迭代。

如何使循环忽略循环空值？

1 个答案: