php - 如何在数组中添加结构化数据模式

Question

如何将结构化数据 mainEntity 添加为数组 @type 问题？

正如您从我的代码中看到的，我需要将主要实体作为一个数组，以便我可以将高级自定义字段转发器行传递到架构中以尝试构建 FAQ .

我试图传递到结构化数据中的字段是一个非常基本的 ACF 转发器，您可以在这里看到:

<section class="faq">
    <div class="container max-width px-5">
        <div class="row">
            <div class="col-lg-6 features-title-block">
                <h2 class="mpc-header"> <?php if ( get_field('faq_header') ) : ?>
                    <?php the_field('faq_header'); ?>
                    <?php endif; ?></h2>
                    <?php if ( get_field('faq_sub_text') ) : ?>
                    <div class="pb-5"><?php the_field('faq_sub_text'); ?></div>
                <?php endif; ?>
            </div>
            <div class="col-lg-6">
                <?php if ( have_rows('faq') ) : ?>
                <div class="accordion" id="accordionExample">
                    <?php while( have_rows('faq') ) : the_row(); ?>
                    <div class="card">
                        <div class="card-header" id="heading<?php echo get_row_index(); ?>">
                            <h2 class="mb-0">
                                <button class="btn btn-link d-inline-flex" type="button" data-toggle="collapse"
                                    data-target="#collapse<?php echo get_row_index(); ?>" aria-expanded="true"
                                    aria-controls="collapse<?php echo get_row_index(); ?>">
                                    <?php the_sub_field('question'); ?>
                                </button>
                            </h2>
                        </div>
                        <div id="collapse<?php echo get_row_index(); ?>" class="collapse"
                            aria-labelledby="heading<?php echo get_row_index(); ?>" data-parent="#accordionExample">
                            <div class="card-body">
                                <?php the_sub_field('answer'); ?>
                            </div>
                        </div>
                    </div>
                    <?php endwhile; ?>
                    <?php
                    $schema = array(
                    '@context'   => "https://schema.org",
                    '@type'      => "FAQPage",
                    'mainEntity' => array()
                    );
                    global $schema;
                    if ( have_rows('faq') ) {
                        while ( have_rows('faq') ) : the_row();
                            $questions = array(
                                '@type'          => 'Question',
                                'name'           => get_sub_field('question'),
                                'acceptedAnswer' => array(
                                '@type' => "Answer",
                                'text' => get_sub_field('answer')
                                )
                                );
                                array_push($schema['mainEntity'], $questions);
                                        endwhile;
                    function generate_faq_schema ($schema) {
                    global $schema;
                    echo '<script type="application/ld+json">'. json_encode($schema) .'</script>';
                    }
                    add_action( 'wp_footer', 'generate_faq_schema', 100 );
                    }
                    ?>
                    <?php endif; ?>
                    <!-- endif have_rows('faq'); -->
                </div>
            </div>
        </div>
    </div>
</section>

Answer 1

我不是 WordPress 的专业人士，但如果您尽可能避免使用全局变量，这对您的应用程序会有好处。试试下面的代码。

<?php
function generate_faq_schema () {
    if ( have_rows('faq') ) {
        $schema = [
            '@context'   => "https://schema.org",
            '@type'      => "FAQPage",
            'mainEntity' => array()
        ];
        while ( have_rows('faq') ) : the_row();
            $questions = [
                '@type'          => 'Question',
                'name'           => get_sub_field('question'),
                'acceptedAnswer' => [
                    '@type' => "Answer",
                    'text' => get_sub_field('answer')
                ]
            ];
            array_push($schema['mainEntity'], $questions);
        endwhile;
        echo '<script type="application/ld+json">'. json_encode($schema) .'</script>';
    }
}
add_action( 'wp_footer', 'generate_faq_schema', 100 );

?>

还要检查 的第四个参数add_action here .