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Source View: manage_{$post_type}_posts_columns

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: apply_filters( "hook_name", "what_to_filter" ).

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
457           /**
458            * Filter the columns displayed in the Posts list table for a specific post type.
459            *
460            * The dynamic portion of the hook name, `$post_type`, refers to the post type slug.
461            *
462            * @since 3.0.0
463            *
464            * @param array $post_columns An array of column names.
465            */
466           return apply_filters( "manage_{$post_type}_posts_columns", $posts_columns );
467      }
468
469      /**
470       *
471       * @return array
472       */
473      protected function get_sortable_columns() {
474           return array(
475                'title'    => 'title',