[英]Looping through Wordpress categories with foreach
我想這肯定是一個新手問題,但我試圖修改其他問題上找到的一些代碼,我仍然無法找到如何循環通過類別的帖子,並使它們顯示為Bootstrap 4徽章。
if ( ! function_exists( 'mytheme_the_categories' ) ) :
/**
* Prints HTML with the categories, formatted as Bootstrap 4 badges.
*/
function mytheme_the_categories() {
$categories_list = get_the_category_list();
if ( $categories_list && positor_categorized_blog() ) {
echo '<div class="entry-categories"><span class="sr-only">'. esc_html__( 'Posted in ', 'positor' ) . '</span>';
foreach ($categories_list as $category) {
echo '<span class="badge badge-primary">';
echo $category->name;
echo '</span>';
}
echo '</div>';
}
}
endif;
但是會收到錯誤:“警告:為foreach()提供的參數無效”
get_the_category_list()實際上生成了html列表。
嘗試使用get_categories()代替。
請參考https://developer.wordpress.org/reference/functions/get_the_category_list/ , https://developer.wordpress.org/reference/functions/get_categories/
您可以使用get_categories()獲取類別名稱代碼在這里:
<?php
$category_args = array(
'type' => 'your_post_type_slug',
'child_of' => 0,
'parent' => 0,
'orderby' => 'id',
'order' => 'ASC',
'hide_empty' => 0,
'hierarchical' => 1,
'exclude' => '',
'include' => '',
'number' => '',
'taxonomy' => 'your_taxonomy_slug',
'pad_counts' => false
);
$categories_array = get_categories( $category_args );
echo '<div class="entry-categories"><span class="sr-only">'. esc_html__( 'Posted in ', 'positor' ) . '</span>';
foreach ( $categories_array as $categories_val ) {
echo '<span class="badge badge-primary"><a href="'.get_term_link(intval($categories_val->term_id), $categories_val->taxonomy).'"></span>'.$categories_val->name.'</a>';
}
?>
解決方案是使用get_the_category()
。 粘貼下面的工作代碼,以防任何人稍后使用Google搜索。
if ( ! function_exists( 'mytheme_the_categories' ) ) :
/**
* Prints HTML with the categories, formatted as Bootstrap 4 badges.
*/
function mytheme_the_categories() {
$categories_list = get_the_category();
if ( $categories_list && positor_categorized_blog() ) {
echo '<div class="entry-categories"><span class="sr-only">'. esc_html__( 'Posted in ', 'positor' ) . '</span>';
foreach ($categories_list as $category) {
echo '<span class="badge badge-primary mr-1">';
echo $category->name;
echo '</span>';
}
echo '</div>';
}
}
endif;
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