我的woocommerce产品有两个产品类别：
“11级”“12级”
我试图单独提取数字并将其输出到div中。所以我只需要“11”或“12”。
下面是我函数中的部分循环：
function featured_courses_query() {
$meta_query = WC()->query->get_meta_query();
$tax_query = WC()->query->get_tax_query();
$tax_query[] = array(
\'taxonomy\' => \'product_visibility\',
\'field\' => \'name\',
\'terms\' => \'featured\',
\'operator\' => \'IN\',
);
$args = array(
\'post_type\' => \'product\',
\'stock\' => 1,
\'showposts\' => 3,
\'orderby\' => \'rand\',
\'order\' => \'DESC\',
\'meta_query\' => $meta_query,
\'tax_query\' => $tax_query
);
$featured_query = new WP_Query( $args );
if ($featured_query->have_posts()) :
$html_out = \'<ul class="products x-block-grid three-up">\';
while ($featured_query->have_posts()) :
$featured_query->the_post();
$product = get_product( $featured_query->post->ID );
$course_title = get_the_title($post->ID);
$course_level = get_field( "course_level" );
$course_id = get_field( "course_id" );
$course_icon = get_field( "course_icon" );
$excerpt = get_the_excerpt($post->ID);
$url = get_permalink();
$queried_object = get_queried_object();
$taxonomy = $queried_object->taxonomy;
$term_id = $queried_object->term_id;
$term = get_term( $id, $taxonomy );
$slug = $term->slug;
$explodedSlug = explode(\'-\', $slug);
// Output product information here
$html_out .= \'<li class="product type-product status-publish no-post-thumbnail first instock featured taxable shipping-taxable product-type-simple"><div class="entry-product">\';
$html_out .= \'<div class="course-level">\' . $explodedSlug[1] . \'</div>\';
if( $course_icon ):
$html_out .= \'<div class="course-icon"><img src="\' . $course_icon . \'" alt="\' . $course_title . \'"></div>\';
endif;
$html_out .= \'<h4><a href="\' . $url . \'">\' . $course_title . \'</a></h4><p>\' . $course_level . " - " . $course_id . \'</p><p>\' . $excerpt . \'</p>\';
$html_out .= \'</div></li>\';
endwhile;
$html_out .= \'</ul>\';
else : // No results
$html_out = "No Courses Found.";
endif;
wp_reset_query();
return $html_out;
}
add_shortcode( \'featured_courses\', \'featured_courses_query\' );
我以前从未引爆过任何东西，而且我认为我没有正确地得到子弹。我的功能肯定有问题。
最合适的回答,由SO网友:Anwer AR 整理而成
我想问题就在这里。
$slug = $term->slug;
$explodedSlug = explode(\'-\', $_slug);
您正在传递一个未定义的数组
$_slug 到
explode 作用正确的数组为
$slug. 因此，您的完整代码应该如下所示。
function revised_featured_courses_query() {
$meta_query = WC()->query->get_meta_query();
$tax_query = WC()->query->get_tax_query();
$tax_query[] = array(
\'taxonomy\' => \'product_visibility\',
\'field\' => \'name\',
\'terms\' => \'featured\',
\'operator\' => \'IN\',
);
$args = array(
\'post_type\' => \'product\',
\'stock\' => 1,
\'showposts\' => 3,
\'orderby\' => \'rand\',
\'order\' => \'DESC\',
\'meta_query\' => $meta_query,
\'tax_query\' => $tax_query
);
$featured_query = new WP_Query( $args );
if ($featured_query->have_posts()) :
$html_out = \'<ul class="products">\';
while ($featured_query->have_posts()) : $featured_query->the_post();
$id = get_the_ID(); // or use $post->ID
$terms = get_the_term( $id, \'product_cat\' );
foreach ($terms as $term ) {
$slug = $term->slug;
$explodedSlugs[] = explode( \'-\', $slug );
}
// Your other codes goes here.
$html_out .= \'<li class=""><div class="entry-product">\';
$html_out .= \'<div class="course-level">\';
foreach ($explodedSlugs as $slug ) {
$html_out .= $slug[1];
}
$html_out .= \'</div>\';
$html_out .= \'</div></li>\';
endwhile;
$html_out .= \'</ul>\';
endif;
//wp_reset_query();
return $html_out;
}
