How to get the variation identifier in a Woocommerce product

Question

I am trying to enter the plugin. I am writing product variation identifier. Here is what I wrote:

class mass {

    public function __construct()
    {
        add_action('woocommerce_product_after_variable_attributes',array($this,'thfo_mass'));


    }
public function thfo_mass()
    {
        $id = WC_Product_Variation::get_variation_id();
        //$lenght = get_post_meta($id,'_length');
        //$dimensions = wc_get_dimension(24750, 'cm');
        var_dump($id);
    }

I get an error message:

Deprecated: the non-static method WC_Product_Variation :: get_variation_id () should not be called static, assuming $ this from an incompatible context in path / to / plugins / thfo-raw-material-for-woocommerce / class / mass.php on line 19

Note: Undefined property: mass :: $ variant_id in path / to / wp-content / plugins / woocommerce / includes / class-wc-product-variant.php on line 257 int (0)

Answer 1

try it.

 <?php 
    $product_obj = new WC_Product_Factory();
    $product = $product_obj->get_product($product);                             
    if ($product->product_type == 'variable'):
        $children   = $product->get_children( $args = '', $output = OBJECT ); 
        foreach ($children as $key=>$value) {
            $product_variatons = new WC_Product_Variation($value);
            if ( $product_variatons->exists() && $product_variatons->variation_is_visible() ) {
                $variations[$value] = $product_variatons->get_variation_attributes();
            }
        }
   endif;

Answer 2

get_variation_id .

/ WC_Product_Variation, .

---

$variable_product = new WC_Product_Variation($value);
$variable_product->get_variation_id();

Answer 3

:

-, :

$colour = isset( $_REQUEST[ 'attribute_' . sanitize_title( 'pa_colour' ) ] ) ? wc_clean( stripslashes( urldecode( $_REQUEST[ 'attribute_' . sanitize_title( 'pa_colour' ) ] ) ) ) : $product->get_variation_default_attribute( 'pa_colour' );

foreach, :

$variation_id = searchForVariants($colour, $size, $available_variations);
$product_shipping_classes = get_the_terms( $variation_id, 'product_shipping_class' );
$product_shipping_class_name = ( $product_shipping_classes && ! is_wp_error( $product_shipping_classes ) ) ? current( $product_shipping_classes )->name : '';

current( $product_shipping_classes )->term_id current( $product_shipping_classes )->slug current( $product_shipping_classes )->name.

searchForVariants functions.php:

function searchForVariants($colour, $size, $array) {

    foreach ($array as $key => $sub_array) {

        if ($sub_array['attributes']['attribute_pa_colour'] === $colour && $sub_array['attributes']['attribute_pa_size'] === $size) {
           return $sub_array['variation_id'];
        } else {
            continue;
        }
    }
}

$available_variations variable.php, , , .