Create Woo Product

create_wc_product.php

// Custom function for product creation (For Woocommerce 3+ only)
function create_product( $args ){

    if( ! function_exists('wc_get_product_object_type') && ! function_exists('wc_prepare_product_attributes') )
        return false;

    // Get an empty instance of the product object (defining it's type)
    $product = wc_get_product_object_type( $args['type'] );
    if( ! $product )
        return false;

    // Product name (Title) and slug
    $product->set_name( $args['name'] ); // Name (title).
    if( isset( $args['slug'] ) )
        $product->set_name( $args['slug'] );

    // Description and short description:
    $product->set_description( $args['description'] );
    $product->set_short_description( $args['short_description'] );

    // Status ('publish', 'pending', 'draft' or 'trash')
    $product->set_status( isset($args['status']) ? $args['status'] : 'publish' );

    // Visibility ('hidden', 'visible', 'search' or 'catalog')
    $product->set_catalog_visibility( isset($args['visibility']) ? $args['visibility'] : 'visible' );

    // Featured (boolean)
    $product->set_featured(  isset($args['featured']) ? $args['featured'] : false );

    // Virtual (boolean)
    $product->set_virtual( isset($args['virtual']) ? $args['virtual'] : false );

    // Prices
    $product->set_regular_price( $args['regular_price'] );
    $product->set_sale_price( isset( $args['sale_price'] ) ? $args['sale_price'] : '' );
    $product->set_price( isset( $args['sale_price'] ) ? $args['sale_price'] :  $args['regular_price'] );
    if( isset( $args['sale_price'] ) ){
        $product->set_date_on_sale_from( isset( $args['sale_from'] ) ? $args['sale_from'] : '' );
        $product->set_date_on_sale_to( isset( $args['sale_to'] ) ? $args['sale_to'] : '' );
    }

    // Downloadable (boolean)
    $product->set_downloadable(  isset($args['downloadable']) ? $args['downloadable'] : false );
    if( isset($args['downloadable']) && $args['downloadable'] ) {
        $product->set_downloads(  isset($args['downloads']) ? $args['downloads'] : array() );
        $product->set_download_limit(  isset($args['download_limit']) ? $args['download_limit'] : '-1' );
        $product->set_download_expiry(  isset($args['download_expiry']) ? $args['download_expiry'] : '-1' );
    }

    // Taxes
    if ( get_option( 'woocommerce_calc_taxes' ) === 'yes' ) {
        $product->set_tax_status(  isset($args['tax_status']) ? $args['tax_status'] : 'taxable' );
        $product->set_tax_class(  isset($args['tax_class']) ? $args['tax_class'] : '' );
    }

    // SKU and Stock (Not a virtual product)
    if( isset($args['virtual']) && ! $args['virtual'] ) {
        $product->set_sku( isset( $args['sku'] ) ? $args['sku'] : '' );
        $product->set_manage_stock( isset( $args['manage_stock'] ) ? $args['manage_stock'] : false );
        $product->set_stock_status( isset( $args['stock_status'] ) ? $args['stock_status'] : 'instock' );
        if( isset( $args['manage_stock'] ) && $args['manage_stock'] ) {
            $product->set_stock_status( $args['stock_qty'] );
            $product->set_backorders( isset( $args['backorders'] ) ? $args['backorders'] : 'no' ); // 'yes', 'no' or 'notify'
        }
    }

    // Sold Individually
    $product->set_sold_individually( isset( $args['sold_individually'] ) ? $args['sold_individually'] : false );

    // Weight, dimensions and shipping class
    $product->set_weight( isset( $args['weight'] ) ? $args['weight'] : '' );
    $product->set_length( isset( $args['length'] ) ? $args['length'] : '' );
    $product->set_width( isset(  $args['width'] ) ?  $args['width']  : '' );
    $product->set_height( isset( $args['height'] ) ? $args['height'] : '' );
    if( isset( $args['shipping_class_id'] ) )
        $product->set_shipping_class_id( $args['shipping_class_id'] );

    // Upsell and Cross sell (IDs)
    $product->set_upsell_ids( isset( $args['upsells'] ) ? $args['upsells'] : '' );
    $product->set_cross_sell_ids( isset( $args['cross_sells'] ) ? $args['upsells'] : '' );

    // Attributes et default attributes
    if( isset( $args['attributes'] ) )
        $product->set_attributes( wc_prepare_product_attributes($args['attributes']) );
    if( isset( $args['default_attributes'] ) )
        $product->set_default_attributes( $args['default_attributes'] ); // Needs a special formatting

    // Reviews, purchase note and menu order
    $product->set_reviews_allowed( isset( $args['reviews'] ) ? $args['reviews'] : false );
    $product->set_purchase_note( isset( $args['note'] ) ? $args['note'] : '' );
    if( isset( $args['menu_order'] ) )
        $product->set_menu_order( $args['menu_order'] );

    // Product categories and Tags
    if( isset( $args['category_ids'] ) )
        $product->set_category_ids( $args['category_ids'] );
    if( isset( $args['tag_ids'] ) )
        $product->set_tag_ids( $args['tag_ids'] );


    // Images and Gallery
    $product->set_image_id( isset( $args['image_id'] ) ? $args['image_id'] : "" );
    $product->set_gallery_image_ids( isset( $args['gallery_ids'] ) ? $args['gallery_ids'] : array() );

    ## --- SAVE PRODUCT --- ##
    $product_id = $product->save();

    return $product_id;
}