php WordPress |获取第一个类别名称，slug和ID

Posted 2021-05-04

// in the loop
$category = get_the_category();
$currentcat = $category[0]->cat_ID;
$currentcatname = $category[0]->cat_name;
$currentcatslug = $category[0]->slug;
// outside the loop
global $post;
$categories = get_the_category($post->ID);
$currentcat = $category[0]->cat_ID;
$currentcatname = $category[0]->cat_name;
$currentcatslug = $category[0]->slug;