get_column_headers( string|WP_Screen $screen ): string[]

17function get_column_headers( $screen ) {18	static $column_headers = array();19 20	if ( is_string( $screen ) ) {21		$screen = convert_to_screen( $screen );22	}23 24	if ( ! isset( $column_headers[ $screen->id ] ) ) {25		/**26		 * Filters the column headers for a list table on a specific screen.27		 *28		 * The dynamic portion of the hook name, `$screen->id`, refers to the29		 * ID of a specific screen. For example, the screen ID for the Posts30		 * list table is edit-post, so the filter for that screen would be31		 * manage_edit-post_columns.32		 *33		 * @since 3.0.034		 *35		 * @param string[] $columns The column header labels keyed by column ID.36		 */37		$column_headers[ $screen->id ] = apply_filters( "manage_{$screen->id}_columns", array() );38	}39 40	return $column_headers[ $screen->id ];41}