woocommerce change price while add to cart

Question

i have a one product 1€ and use e GET parameter to change the price at runtime:

http://url/warenkorb/?add-to-cart=1539&price=18.45

This change not the price

Answer 1

After release of woocommerce version 3.0.0 product price is update on add to cart using set_price($price) function. The example is given as below :

add_action( 'woocommerce_before_calculate_totals', 'mj_custom_price' );

function mj_custom_price( $cart_object ) {
   $woo_ver = WC()->version; 
   $custom_price = 10;
   foreach ( $cart->cart_contents as $key => $value )
   {
       if($woo_ver < "3.0.0" && $woo_ver < "2.7.0")
       {
           $value['data']->price = $custom_price;
       }
       else
       {
           $value['data']->set_price($custom_price);
       }
   }            
}

Many Thanks