使用
<?php
foreach((get_the_category()) as $category) {
echo $category->cat_name . ', ';
}
?>
现在，这显然在每个"类别"的末尾输出一个逗号，我该如何从列表的最后一项中删除逗号呢?
使用rtrim:
$cats = '';
foreach((get_the_category()) as $category) {
$cats .= $category->cat_name . ', ';
}
echo rtrim($cats, ', ');
这里有另一种方法，使用join函数-
echo join(",",array_map(function($category){return $category->cat_name;}, get_the_category()));
你可以试试:
$categories = array();
foreach(get_the_category() as $category) {
$categories[] = $category->cat_name;
}
echo implode($categories, ',');