php - json表数据如何限制td的长度？

Question

我编辑了这个表，我用 data.json 文件下载了它，并让它通过 foreach 从数据库获取数据

我正在使用 Codeigniter 3

这是表格代码

<div class="row">
    <div class="col-lg-12">
        <div class="panel panel-default">
            <div class="panel-body">
                <table data-toggle="table" data-show-toggle="true" data-show-columns="true" data-search="true" data-select-item-name="toolbar1" data-pagination="true" data-sort-name="name" data-sort-order="desc">
                    <thead>
                    <tr>
                        <th data-field="state" data-checkbox="true" >Post ID</th>
                        <th data-field="id" data-sortable="true">Post ID</th>
                        <th data-field="username"  data-sortable="true">Poster Author</th>
                        <th data-field="post" data-sortable="true">Post</th>
                        <th data-field="tid" data-sortable="true">Topic ID</th>
                        <th data-field="pdate" data-sortable="true">Post Date</th>
                    </tr>
                    </thead>
                    <tbody>
                        <?php
                        foreach ($posts as $post) {
                        echo '
                        <tr>
                        <td>'.$post->pid.'</td>
                        <td>'.$post->pid.'</td>
                        <td>'.$post->author_name.'</td>
                        <td>'.$post->post.'</td>
                        <td>'.$post->topic_id.'</td>
                        <td>'.unix_to_human($post->post_date).'</td>
                        </tr>';
                        }
                        ?>
                    </tbody>
                </table>
            </div>
        </div>
    </div>
</div><!--/.row-->  

我的问题是我想限制帖子 td 中的最大长度

<td>'.$post->post.'</td>

可以实现吗？

Answer 1

加载文本助手，然后使用character_limiter($str[, $n = 500[, $end_char = '…']])，例如:

$string = "Here is a nice text string consisting of eleven words.";
$string = character_limiter($string, 20);
// Returns:  Here is a nice text string

或者根据您的情况:

character_limiter($post->post, 100, '…');// You should set appropriate length

Docs .