How to make a redirect in PHP?

Redirection from one page to another in PHP is commonly achieved using the following two ways:
Using Header Function in PHP: 
The header() function is an inbuilt function in PHP which is used to send the raw HTTP (Hyper Text Transfer Protocol) header to the client. 
Syntax: 

header( $header, $replace, $http_response_code )

Parameters: This function accepts three parameters as mentioned above and described below: 
 

• $header: This parameter is used to hold the header string.
• $replace: This parameter is used to hold the replace parameter which indicates the header should replace a previous similar header, or add a second header of the same type. It is optional parameter.
• $http_response_code: This parameter hold the HTTP response code.

Below program illustrates the header() function in PHP:
Program: 

Note: The die() or exit() function after header is mandatory. If die() or exit() is not put after the header(‘Location: ….’) then script may continue resulting in unexpected behavior. For example, result in content being disclosed that actually wanted to prevent with the redirect (HTTP 301). 
Using JavaScript via PHP: 
The windows.location object in JavaScript is used to get the current page address(URL) and to redirect the browser to a new page. The window.location object contains the crucial information about a page such as hostname, href, pathname, port etc.
Example: 

Output: 

URL: https://ide.geeksforgeeks.org/tryit.php
Hostname: ide.geeksforgeeks.org
Protocol: https:

PHP is a server-side scripting language designed specifically for web development. You can learn PHP from the ground up by following this PHP Tutorial and PHP Examples.