function devvn_wc_custom_get_price_html( $price, $product ) { if ( ! $product->get_price() ) { if ( $product->is_on_sale() && $product->get_regular_price() ) { $regular_price = wc_get_price_to_display( $product, array( 'qty' => 1, 'price' => $product->get_regular_price() ) ); $price = wc_format_price_range( $regular_price, __( 'Free!', 'woocommerce' ) ); } else { $price = '' . __( 'Liên hệ', 'woocommerce' ) . ''; } } return $price; } add_filter( 'woocommerce_get_price_html', 'devvn_wc_custom_get_price_html', 10, 2 ); Hướng dẫn - gothatu

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