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.
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:
Note: The die() or exit() function after header is mandatory. If die() or exit() is not put after 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).
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