I need a udemy course for laravel advanced search and filter

Yes, many of us here can do this stuff. It is not a quick forum answer. Many here spent weeks or months on each technique to master it.

But dependent dropdowns have been covered here, perhaps a search would reveal.

As example (rough draft only) I've done things like:

https://drive.google.com/file/d/0B1_PFw--3o74TC16eXRBYXZBNFk/view

and reports

https://drive.google.com/file/d/1R3VtCPpQ0JP3q7dpjt4M69eYFLPenMU_/view?usp=sharing

Personally, I usually prefer a lookup table instead of a dropdown. Because, you could have a few hundred entries, and a lookup table will allow for a search box.

Thanks jlrdw . but but this not exactly .

example . table 1 for country . table 2 for city . table 3 post peoples info . when i insert data to peoples i need to select country . when select it city load city of this country .

this for post ...

and for search . i want when write name and select country and press search i see results .

As I said examples of that have been answered before right here a search would probably reveal some detail discussions.