a:6:{s:6:"status";s:7:"invalid";s:9:"operation";s:8:"add_prod";s:12:"operation_id";s:0:"";s:10:"msg_header";s:0:"";s:3:"msg";a:1:{i:0;s:50:"price is zero, so it is skipped! - [ <i>1 ms</i> ]";}s:8:"duration";d:1;}