Original link: https://www.wpdaxue.com/admin-columns.html
WordPress can do basically anything and is very versatile, but some of its features may need improvement if you want to achieve something. In this tutorial, we’ll show you how to add a new WordPress admin column to allow managers to view and manipulate post data. In addition to showing you how to add more admin columns, we also want to address the fact that you may not even need these custom columns. This is why this article is divided into three parts. In the first one, we’ll discuss why and when you need to add a new admin column to your WordPress site. Second, why and when you might not want or need it. However, if you’re sure you really need it, you can go straight to the third section. Why add
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