System -> System Basic Parameters -> Other Options -> Template Engine Disable Tag -> Delete "php"
Core -> Channel Model -> Content Model Management -> Check "Edit" of "Normal Article"
Click "Add New Field"
Fill in the "form prompt text" and fill in the "field name" and check "the field can be..." of "front-end parameters" and check the "Checkbox" and fill in the content of the options
The quoted code is as follows:
{dede:php}AddFilter(1,1,"username");{/dede:php}
Effect picture:
PS: Override arc.listview.class.php and extend.func.php of include