php - 如何检查当前猫是否在数组内并且 IF 是父级

Question

我有一个名为 $best_cats

的全局变量

global $best_cats;
$best_cats =  array(8,31,51,102,217,218);

现在我需要检查当前的猫是否在数组内，并且如果当前的猫是父猫。

我正在尝试这种方法，但不起作用。我做错了什么以及我该怎么做？

<?php 
    $this_category = get_category($cat);
    $cat_id = $this_category->cat_ID;
    if (in_array($cat_id, $best_cats) && ($this_category->category_parent == 0 )) { ?>

    //category is inside of the array and is a parent cat

    <?php } else { ?>

    //category is not inside the array and It's not a parent either

    <?php } ?>

Answer 1

看起来你忘记了global

 <?php 
        global $best_cats;
        $this_category = get_category($cat);
        $cat_id = $this_category->cat_ID;
        if (in_array($cat_id, $best_cats) && ($this_category->category_parent == 0 )) {
            //category is inside of the array and is a parent cat
        } else {    
            //category is not inside the array and It's not a parent either
        }