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Source View: manage_{$post_type}_posts_columns

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Line Code
603           /**
604            * Filters the columns displayed in the Posts list table for a specific post type.
605            *
606            * The dynamic portion of the hook name, `$post_type`, refers to the post type slug.
607            *
608            * @since 3.0.0
609            *
610            * @param array $post_columns An array of column names.
611            */
612           return apply_filters( "manage_{$post_type}_posts_columns", $posts_columns );
613      }
614
615      /**
616       *
617       * @return array
618       */
619      protected function get_sortable_columns() {
620           return array(
621                'title'    => 'title',