为什么我的 if 语句不适用于 get_the_category? [英] Why isn't my if statement working with get_the_category?

问题描述

我正在尝试创建一个 if 语句，该语句将为帖子所在的每个类别回显一个单词，它从帖子 ID 中获取类别名称，但第一个类别是所有故事，因此我要求它获取第二个类别帖子所在的位置:

Im trying to make an if statement that would echo a word for each category that the post is in, it gets the category name from the post id, but the first category is All Stories so I asked it to get the second category that the post is in:

$category_detail=get_the_category( $post->ID )[1]->name;
echo $category_detail;
// echoes COMPANY NEWS
if($category_detail == "COMPANY NEWS") {
    echo "C_News";
} elseif ($category_detail == "SECTOR OPPORTUNITIES") {
    echo "S_News";
}

但结果是每个帖子类别之后的 C_News，即使它不是正确的类别.

but the result is the C_News after every post category even if it's not the right category.

我尝试使用 is_category( 'Company News' ) 但这不起作用，任何建议将不胜感激.

I tried using is_category( 'Company News' ) but that didn't work, any suggestions would be greatly appreciated.

推荐答案

您正在寻找比较(==)而不是分配强> (=):

You are looking for a comparison (==) instead of an assignment (=):

$category_detail=get_the_category( $post->ID )[1]->name;
echo $category_detail;
// echoes COMPANY NEWS
if($category_detail == "COMPANY NEWS") {
    echo "C_News";
} elseif ($category_detail == "SECTOR NEWS") {
    echo "S_News";
}

您的代码 (if ($category_detail = "COMPANY NEWS")) 始终为真，因为它是一个分配，因此它始终与 COMPANY 相呼应NEWS 分支.

Your code (if ($category_detail = "COMPANY NEWS")) is always true as it is an assignment, therefore it will always echo the COMPANY NEWS branch.

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