John Davidson

Message:

I have added 3 custom post types and for each post types I have ACF Field which i wish to display in the columns for each post types. I have added the code but tits not working if added in foreach loop.

Here is the Code.

$cpt_list = array(

    'book','movie','presentation',

);



foreach ( $cpt_list as $key ) {

    add_filter( "manage_edit-'.$key.'_posts_columns", function($columns) {

        unset(

            $columns['date']

        );

        $columns['custom_pass'] = __( 'Custom Password', 'theme' );

        $columns['date']        = esc_html__( 'Date', 'theme' );



        return $columns;



        }

    );

}

What am I doing wrong?

---

My Answer:
The issue with your code is that you are trying to use a variable `$key` inside the anonymous function passed to the `add_filter` function. This variable is not available inside the function because it is outside of the function's scope.

To fix this issue, you can use the `use` keyword to pass the `$key` variable to the anonymous function. Here is the updated code:

php
$cpt_list = array(
'book','movie','presentation',
);

foreach ( $cpt_list as $key ) {
add_filter( "manage_edit-{$key}_posts_columns", function($columns) use ($key) {
unset(
$columns['date']
);
$columns['custom_pass'] = __( 'Custom Password', 'theme' );
$columns['date'] = esc_html__( 'Date', 'theme' );

return $columns;

}
);
}


By using the `use ($key)` syntax, you can pass the `$key` variable to the anonymous function and access it inside the function. This should fix the issue and display the custom columns for each custom post type.