$_defaults $_defaults :array Typearray—The default args after merging with the plugin options (lazy loaded, internal use only).
$standard_columns $standard_columns :array Typearray—The full list of standard columns (excludes prefixed columns such as custom fields, taxonomies, and attributes).
$column_replacements $column_replacements :array Typearray—Some column replacements used for correcting misspelled columns.
parse_filters_arg() parse_filters_arg( $filters, $variations, $columns) Parameters $filters $variations $columns
parse_filters() parse_filters( $filters, $variations, $columns) Parameters $filters $variations $columns
array_filter_custom_field_or_taxonomy() array_filter_custom_field_or_taxonomy( $column) Parameters $column