PHP While 和 For 循环分组（使用 WP ACF）

Question

循环使用 'while' 语句我得到以下输出：

move_it
clean_beauty
on_our_radar
move_it

我想在字段（$featured_type）相同的地方输出这些。例如。我要输出如下：

move_it
move_it

clean_beauty

on_our_radar

这是我目前用基本循环输出的第一个例子。我正在遍历字段（来自 WordPress 中的高级自定义字段转发器）。

        while( has_sub_field( 'featured_posts', $acf_id )  ):


        $featured_post = get_sub_field( 'featured_post', $acf_id );
        $featured_type = get_field( 'editorial_template', $featured_post->ID );

        echo $featured_type . '<br />';

        endwhile;

我已经编写了一些分组代码，但我知道必须有更优雅的方法来实现相同的结果。我的方法很笨拙！任何建议表示赞赏。

        <?php 

        while( has_sub_field( 'featured_posts', $acf_id )  ):


        $featured_post = get_sub_field( 'featured_post', $acf_id );
        $featured_type = get_field( 'editorial_template', $featured_post->ID );


        if ($featured_type == 'move_it') {
            echo  $featured_type . '<br />';
        }

        endwhile;

        while( has_sub_field( 'featured_posts', $acf_id )  ):


        $featured_post = get_sub_field( 'featured_post', $acf_id );
        $featured_type = get_field( 'editorial_template', $featured_post->ID );


        if ($featured_type == 'clean_beauty') {
            echo $featured_type .  '<br />';
        }

        endwhile;

        while( has_sub_field( 'featured_posts', $acf_id )  ):


        $featured_post = get_sub_field( 'featured_post', $acf_id );
        $featured_type = get_field( 'editorial_template', $featured_post->ID );


        if ($featured_type == 'on_our_radar') {
            echo  $featured_type .  '<br />';
        }

     endwhile; ?>

Answer 1

使用数组，您可以存储值，然后排序并最后回显它们：

$featured_types = array();

while( has_sub_field( 'featured_posts', $acf_id )  ):

    $featured_post = get_sub_field( 'featured_post', $acf_id );
    $featured_type = get_field( 'editorial_template', $featured_post->ID );

    $featured_types[] = $featured_type;

endwhile;

sort( $featured_types );

echo implode( '<br>', $featured_types );

如果您不想按字母顺序排列它们，other ways 可以做到。

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