我想在帖子类型的帖子标题之外显示帖子类型的分类术语，并用“in”或“post in”文本字符串分隔。

到目前为止我所做的尝试：

$output .= \'<div>\' . get_the_title() . \'</div>\';
$terms = wp_get_post_terms($post->ID, \'itemscategories\', array(\'fields\' => \'names\'));

echo implode(\', \', $terms);

<小时>

$output .= \'<div>\' . get_the_title() . \'</div>\';
$terms = wp_get_post_terms($post->ID, \'itemscategories\', array(\'fields\' => \'names\'));

if ( ! empty( $terms ) ) {
  echo $terms[0]; 
}

<小时>

$output .= \'<div>\' . get_the_title() . \'</div>\';
$terms = wp_get_post_terms($post->ID, \'itemscategories\', array(\'fields\' => \'names\'));

foreach( $terms as $name ) {
    echo $name.\'<br />\';
}

<小时>

$terms = wp_get_post_terms( $post_id, \'itemscategories\' );
if ( $terms && ! is_wp_error( $terms ) ) {
    $output .= \'<div>\' . esc_html( get_the_title() ) . \' \' . esc_html__( \'Posted in:\', \'text_domain\' ) . \' \' . esc_html( $terms[0]->name ) . \'</div>\';
}

<小时>

$output .= \'<div>\' . esc_html( get_the_title() ) . get_the_term_list( $post_id, \'itemscategories\', \'Posted in: \', \', \' ) . \'</div>\';

所有代码只会产生空白，没有显示任何内容。我做错了什么？

如果我把var_dump( $terms ); 在if语句之前显示：

array(0) { } array(0) { } array(0) { } array(0) { } array(0) { } array(0) { } array(0) { } array(0) { }

WP调试报告Parse error: syntax error, unexpected \'if\' (T_IF) in /home/username(edited_by_OP)/public_html/wp-content/themes/total-child-theme-master/functions.php on line 543if语句之前的行末尾有一个正确的分号，所以我不知道为什么会出现这种错误。

这是嵌入代码的短代码

// Define query
    $query_args = array(
    \'author\'=> $user_id,
        \'post_type\'      => \'items\', // Change this to the type of post you want to show
        \'posts_per_page\' => $posts_per_page,
    );

    // Query by term if defined
    if ( $term ) {

        $query_args[\'tax_query\'] = array(
            array(
                \'taxonomy\' => \'category\',
                \'field\'    => \'ID\',
                \'terms\'    => $term,

            ),
        );

    }

    // Query posts
    $custom_query = new WP_Query( $query_args );

    // Add content if we found posts via our query
    if ( $custom_query->have_posts() ) {

        // Open div wrapper around loop
        $output .= \'<div>\';

        // Loop through posts
        while ( $custom_query->have_posts() ) {

            // Sets up post data so you can use functions like get_the_title(), get_permalink(), etc
            $custom_query->the_post();

            // This is the output for your entry so what you want to do for each post.

$terms = wp_get_post_terms( $post_id, \'itemscategories\' );
if ( $terms && ! is_wp_error( $terms ) ) {
    $output .= \'<div>\' . esc_html( get_the_title() ) . \' \' . esc_html__( \'Posted in:\', \'text_domain\' ) . \' \' . esc_html( $terms[0]->name ) . \'</div>\';
}
        }

        // Close div wrapper around loop
        $output .= \'</div>\';

        // Restore data
        wp_reset_postdata();

    }

    // Return your shortcode output
    return $output;

}
add_shortcode( \'myprefix_custom_grid\', \'myprefix_custom_grid_shortcode\' );