Question

我想在每篇文章中计算评论..但是评论计数器放在foreach循环之间。所以我无法正确计算评论...所以我想循环但我不需要在柜台循环

articles_controller.php

$count = $this->Article->Comment->find(
    'count', array('conditions' =>  array('Comment.status' => 1))
);

物品/ index.ctp

<?php
// initialise a counter for striping the table
$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'": '' );
    // increment count
    $count++;

?>

<?php 
    echo $html->link(
        $article['Article']['title'], 
        array( 'action' => 'view', $article['Article']['id'])
    );  
?>

<!-- date and comment counter -->
<p class="entry-meta">
    <span class="date"><?php echo $article['Article']['created']; ?></span> <span class="meta-sep">|</span>
    <span class="comments-link">
    <!-- here i will put the comment counter -->
    <a href="declining-health.html#respond"> <?php  echo $count ['Comment'];>Comments</a>
    </span>
</p>

<?php endforeach; ?>

Answer 1

您可以使用sizeof()计算数组中的项目数。

Answer 2

使用Post-＆gt; Comment关系中的counterCache属性，并确保在帖子模型中有一个comment_count字段。

IE：

<?php
    class Post extends AppModel {
        public $name = 'Post';
        public $hasMany = array(
            'Comment' => array(
                'className'    => 'Comment',
                'foreignKey'   => 'post_id'
            )
        );
    }
?>

<?php
    class Comment extends AppModel {
        public $name = 'Comment';
        public $belongsTo = array(
            'Post' => array(
                'className'    => 'Comment',
                'counterCache'   => true
            )
        );
    }
?>
// in the database table for table posts make sure to do the following

add a column: comment_count int(11) default 0

现在，当您添加新帖子时，您将拥有一个初始值为0的comment_count字段。当在帖子中添加或删除新评论时，计数值将自动更新。

这允许您简单地遍历posts数组并回显comment_count字段的值或使用该值来检查注释然后嵌入元素等。

Answer 3

Krisitian给了你答案，但我建议你在前端做你所有的造型。

css伪选择器

//styles every second(even) elements
.your_class:nth-child(2n){background-color:hotpink;}

tr:nth-child(2n){background-color:hotpink;}

...these also work with jquery

如何在foreach循环中找到计数？

3 个答案: