Filters the columns displayed in the Posts list table.

Parameters

$posts_columnsstring[]

An associative array of column headings.

$post_typestring

The post type slug.

More Information

• manage_posts_columns is a filter applied to the columns shown on the manage posts screen. It’s applied to posts of all types except pages. To add a custom column for pages, hook the manage_pages_columns filter. To add a custom column for specific custom post types, hook the manage_{$post_type}_posts_columns filter.
• Built-in Column Types
  Listed in order of appearance. By default, all columns supported by the post type are shown.
  • cb Checkbox for bulk actions.
  • title Post title. Includes “edit”, “quick edit”, “trash” and “view” links. If $mode (set from $_REQUEST[‘mode’]) is ‘excerpt’, a post excerpt is included between the title and links.
  • author Post author.
  • categories Categories the post belongs to.
  • tags Tags for the post.
  • comments Number of pending comments.
  • date The date and publish status of the post.

Source

$posts_columns = apply_filters( 'manage_posts_columns', $posts_columns, $post_type );

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Changelog