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function is not described

WC_Abstract_Legacy_Product::sync_attributes() public WC 1.0

Sync the variable product's attributes with the variations.

{} It's a method of the class: WC_Abstract_Legacy_Product{}

No Hooks.

Return

null. Nothing.

Usage

$result = WC_Abstract_Legacy_Product::sync_attributes( $product, $children );
$product (required)
-
$children *(true false)*

Default: false

Code of WC_Abstract_Legacy_Product::sync_attributes() WC 5.7.1

public static function sync_attributes( $product, $children = false ) {
	if ( ! is_a( $product, 'WC_Product' ) ) {
		$product = wc_get_product( $product );
	}

	/**
	 * Pre 2.4 handling where 'slugs' were saved instead of the full text attribute.
	 * Attempt to get full version of the text attribute from the parent and UPDATE meta.
	 */
	if ( version_compare( get_post_meta( $product->get_id(), '_product_version', true ), '2.4.0', '<' ) ) {
		$parent_attributes = array_filter( (array) get_post_meta( $product->get_id(), '_product_attributes', true ) );

		if ( ! $children ) {
			$children = $product->get_children( 'edit' );
		}

		foreach ( $children as $child_id ) {
			$all_meta = get_post_meta( $child_id );

			foreach ( $all_meta as $name => $value ) {
				if ( 0 !== strpos( $name, 'attribute_' ) ) {
					continue;
				}
				if ( sanitize_title( $value[0] ) === $value[0] ) {
					foreach ( $parent_attributes as $attribute ) {
						if ( 'attribute_' . sanitize_title( $attribute['name'] ) !== $name ) {
							continue;
						}
						$text_attributes = wc_get_text_attributes( $attribute['value'] );
						foreach ( $text_attributes as $text_attribute ) {
							if ( sanitize_title( $text_attribute ) === $value[0] ) {
								update_post_meta( $child_id, $name, $text_attribute );
								break;
							}
						}
					}
				}
			}
		}
	}
}