How to set the page in php so that it cannot go back

How to set the page to be unable to go back in php: 1. Open the corresponding PHP page; 2. Set the code "header("Cache-control:no-cache,no-store,must-revalidate");" Disable page regression.

The operating environment of this article: Windows7 system, PHP7.1 version, DELL G3 computer

How to set the page in php not to go back?

PHP header() prohibits the page from going back

The code is as follows:

header("Cache-control:no-cache,no-store,must-revalidate"); header("Pragma:no-cache"); header("Expires:0"); header('Location:http://www.xxx.com');

Related introduction:

The header() function sends the original to the client HTTP header.

It's important to realize that the header() function must be called before any actual output is sent (in PHP 4 and above, you can use output caching to solve this problem):

Grammar

header(string,replace,http_response_code)

Recommended learning: "PHP Video Tutorial"

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