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:
html
< html >
< head >
< title >window.location function</ title >
</ head >
< body >
< p id = "demo" ></ p >
< script >
document.getElementById("demo").innerHTML =
"URL: " + window.location.href +"</ br >";
document.getElementById("demo").innerHTML =
document.getElementById("demo").innerHTML +
"Hostname: " + window.location.hostname + "</ br >";
document.getElementById("demo").innerHTML =
document.getElementById("demo").innerHTML +
"Protocol: " + window.location.protocol + "</ br >";
</ script >
</ body >
</ html >
|
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.
Last Updated :
14 Sep, 2022
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