我試圖僅顯示 1 個類別名稱，并希望在帖子列表頁面中隱藏其他類別名稱。add_filter('get_the_terms', 'hide_categories_terms', 10, 3);function hide_categories_terms($terms, $post_id, $taxonomy){$excludeIDs = array(1,322,320,321);// get all the terms $exclude = array();foreach ($excludeIDs as $id) { $exclude[] = get_term_by('id', $id, 'category');}// filter the categoriesif (!is_admin()) { foreach($terms as $key => $term){ if($term->taxonomy == "category"){ foreach ($exclude as $exKey => $exTerm) { if($term->term_id == $exTerm->term_id) unset($terms[$key]); } } }}return $terms;它隱藏了所有類別名稱，但不顯示我想要顯示的類別名稱。請幫助我
1 回答
萬千封印
TA貢獻1891條經驗 獲得超3個贊
您應該能夠做到這一點，而無需獲取排除項或雙循環：
add_filter('get_the_terms', 'hide_categories_terms', 10, 3);
function hide_categories_terms($terms, $post_id, $taxonomy){
if ( ! is_admin() && is_single() ) {
// filter for terms that are not in the exclude array
$filtered_terms = array_filter($terms, function($term) {
$excludeIDs = array(1, 322, 320, 321);
return ! in_array($term->term_id, $excludeIDs);
});
// return filtered array of terms
return $filtered_terms;
}
// return default terms JIC the above case is not met
return $terms;
}
如果您運行的是 PHP 7.4+，您可以通過另一種方式編寫此代碼以節省一些行：
add_filter('get_the_terms', 'hide_categories_terms', 10, 3);
function hide_categories_terms($terms, $post_id, $taxonomy){
if ( ! is_admin() && is_single() ) {
$excludeIDs = [1, 322, 320, 321];
// filter for terms that are not in the exclude array
$filtered_terms = array_filter($terms, fn($t) => ! in_array($t->term_id, $excludeIDs));
// return filtered array of terms
return $filtered_terms;
}
// return default terms JIC the above case is not met
return $terms;
}
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