Question

我有以下foreach循环：

<?php if(!empty($strategy->assisting)):?>
     <ul class="needs-padding">
      <?php foreach($strategy->assisting as $asst): ?>
          <li><?= $asst->full_name; ?></li>
      <?php endforeach; ?>
      </ul>
 <?php endif; ?>

我不仅要在李的内部吐出所有的$ asst，而是要回应多个＆＃39;如果有多个（在显示之后显示列表，我可以用js隐藏/显示它）或者如果只有一个实例则回显$ asst。

我尝试了这个，但它显然是错误的，因为它只打印出多个＆＃39;对于每个$ asst实例。

                  <?php if(!empty($strategy->assisting)):?>
                        <ul class="needs-padding assisting-members">
                            <?php $count = 0; ?>
                            <?php foreach($strategy->assisting as $asst): ?>
                                <?php $count ++; ?>
                                <?php if($count > 1){
                                    echo '<a href="#">Multiple</a>';
                                    // echo '<li>' . $asst->full_name . '</li>';
                                } else {
                                    echo '<li>' . $asst->full_name . '</li>';
                                } ?>
                            <?php endforeach; ?>
                        </ul>
                    <?php endif; ?>

Answer 1

更改您的代码，如下所示：

public string ImpCode(List<string> file) //importing learning module code
    {
        try
        {
            return file[file.IndexOf("CODE") + 1];//looks for the section heading in the file, then gets the next line of the file which will have the contents and returns it.
        }
        catch (Exception ex)
        {
            MessageBox.Show(Convert.ToString(ex), "Error"); //Displays the generated error message to the user
            return null;
        }
    }

Answer 2

由于$strategy->assisting是一个数组，您应该能够使用count($strategy->assisting)而不是$count变量。类似于:(编辑为仅打印“多次”）

              <?php if(!empty($strategy->assisting)):?>
                    <ul class="needs-padding assisting-members">
                        <?php printedMultiple = false; ?>
                        <?php foreach($strategy->assisting as $asst): ?>
                            <?php if(count($strategy->assisting) > 1 and !printedMultiple){
                                echo '<a href="#">Multiple</a>';
                                printedMultiple = true;
                                // echo '<li>' . $asst->full_name . '</li>';
                            } elseif (!printedMultiple) {
                                echo '<li>' . $asst->full_name . '</li>';
                            } ?>
                        <?php endforeach; ?>
                    </ul>
                <?php endif; ?>

Echo基于PHP foreach循环中的实例数

2 个答案: