How to implement non-empty judgment in ThinkPHP6 template

The following tutorial column of thinkphp framework will introduce to you how to implement non-empty judgment in ThinkPHP6 template. I hope it will be helpful to friends in need!

ThinkPHP6 template is not empty, you can use the EMPTY/NOTEMPTY tag to judge, the main user template data output judgment.

EMPTY/NOTEMPTY tag

The empty tag is used to determine whether a variable is empty. Usage:

{empty name="name"}
name为空值
{/empty}

If it is judged that there is no assignment, you can use :

{notempty name="name"}
name不为空
{/notempty}

The above two tags can be merged into:

{empty name="name"}
name为空
{else /}
name不为空
{/empty}

The name attribute can use system variables directly, for example:

{empty name="Think.get.name"}
$_GET['name']为空值
{/empty}

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