如何将CSS类添加到；همتطول；在此php代码中：

add_filter( \'woocommerce_get_price_html\', \'themefars_text_after_price\' );

function themefars_text_after_price($price){

global $post;

$product_id = $post->ID;

$product_array = array( 1204,1202 );//add in the product IDs to add text after price

if ( in_array( $product_id, $product_array )) {

$text_to_add_after_price = \' هر متر طول \'; //change text in bracket to your preferred text 

return $price . $text_to_add_after_price;

}else{

return $price; 
}

}