add 2 functions in php file

I need 2 function on php code. 1. function searchkeyword($keyword, $filterby){} I need function to search keyword Filter by all listing, completelisting, Sold listing 2. function searchseller($keyword, $filterby){} I need function to search the item on seller Filter by all listing, completelisting, Sold listing I need code that work with Ebay SDK. Exmaple 01-simple-keywords-search, 02-keywords-search-with-pagination i attached the code, have a look to it and also check the screenshot that how its running right now-I need 2 function on php code. 1. function searchkeyword($keyword, $filterby){} I need function to search keyword Filter by all listing, completelisting, Sold listing 2. function searchseller($keyword, $filterby){} I need function to search the item on seller Filter by all listing, completelisting, Sold listing I need code that work with Ebay SDK. Exmaple 01-simple-keywords-search, 02-keywords-search-with-pagination