_get_custom_object_labels() │ WP 3.0.0

Builds an object with custom-something object (post type, taxonomy) labels out of a custom-something object

Internal function — this function is designed to be used by the kernel itself. It is not recommended to use this function in your code.

No Hooks.

Returns

Object. Object containing labels for the given custom-something object.

Usage

_get_custom_object_labels( $data_object, $nohier_vs_hier_defaults );
$data_object(object) (required)
A custom-something object.
$nohier_vs_hier_defaults(array) (required)
Hierarchical vs non-hierarchical default labels.

Changelog

Since 3.0.0 Introduced.

_get_custom_object_labels() code WP 6.9.1

wp-includes/post.php 
function _get_custom_object_labels( $data_object, $nohier_vs_hier_defaults ) {
	$data_object->labels = (array) $data_object->labels;

	if ( isset( $data_object->label ) && empty( $data_object->labels['name'] ) ) {
		$data_object->labels['name'] = $data_object->label;
	}

	if ( ! isset( $data_object->labels['singular_name'] ) && isset( $data_object->labels['name'] ) ) {
		$data_object->labels['singular_name'] = $data_object->labels['name'];
	}

	if ( ! isset( $data_object->labels['name_admin_bar'] ) ) {
		$data_object->labels['name_admin_bar'] =
			isset( $data_object->labels['singular_name'] )
			? $data_object->labels['singular_name']
			: $data_object->name;
	}

	if ( ! isset( $data_object->labels['menu_name'] ) && isset( $data_object->labels['name'] ) ) {
		$data_object->labels['menu_name'] = $data_object->labels['name'];
	}

	if ( ! isset( $data_object->labels['all_items'] ) && isset( $data_object->labels['menu_name'] ) ) {
		$data_object->labels['all_items'] = $data_object->labels['menu_name'];
	}

	if ( ! isset( $data_object->labels['archives'] ) && isset( $data_object->labels['all_items'] ) ) {
		$data_object->labels['archives'] = $data_object->labels['all_items'];
	}

	$defaults = array();
	foreach ( $nohier_vs_hier_defaults as $key => $value ) {
		$defaults[ $key ] = $data_object->hierarchical ? $value[1] : $value[0];
	}

	$labels              = array_merge( $defaults, $data_object->labels );
	$data_object->labels = (object) $data_object->labels;

	return (object) $labels;
}