When I want to register or log on, I will jump to the current page. how can I achieve this?

After I register or log on, I will jump to the current browser page. how can I achieve this? After I register or log on, I will jump to the current browser page. how can I achieve this? ------ Solution -------------------- headerlocation ------ solution -------------------- the first floor tells you to use the header to register and verify if ($ isReg) {header (Location: h after I want to register or log in, how can I jump to the current browser page?
After I register or log on, I will jump to the current browser page. how can I achieve this?

------ Solution --------------------
Header
Location
------ Solution --------------------
I told you on the first floor.
Use
Header

// Registration verification passed
If ($ isReg ){
Header ('Location: http://www.example.com/index.php ');
}

Function usage
Http://www.w3school.com.cn/php/func_http_header.asp
------ Solution --------------------
You need to record the previous page, there are a lot of methods. Available in url or session/cookie.
------ Solution --------------------
Header
Location
Js
------ Solution --------------------
Header ('Location: http://www.php.com/index.php ');
Or