In a previous question I asked how to add a column to the Posts page in the Administration section, and got a working answer. But now I need to know how to delete an existing column (e.g. the Date column) so that my customized Date column replaces it.
Answers:
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Method 1
function my_manage_columns( $columns ) {
unset($columns['date']);
return $columns;
}
function my_column_init() {
add_filter( 'manage_posts_columns' , 'my_manage_columns' );
}
add_action( 'admin_init' , 'my_column_init' );
Method 2
On a different fields it is also possible you deactivate the function of WP; as example comments and author:
add_action( 'admin_init', 'fb_deactivate_support' );
function fb_deactivate_support() {
remove_post_type_support( 'post', 'comments' );
remove_post_type_support( 'post', 'author' );
}
the post-string is for the post_type, you can also use this for all post types via:
foreach ( get_post_types() as $post_type ) {
remove_post_type_support( $post_type, 'comments' );
}

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0