How to implement hidden address jump in php

In web development, we often encounter the need to hide the page address or redirect the page. Since the address in the browser address bar can be viewed and modified by the user at any time, some server-side technologies are required to truly hide or redirect the page address. Among them, PHP is a commonly used server-side scripting language that can be used to implement hidden address jumps.

1. Implementation principle of hidden address jump

In Web development, there are two commonly used address jump methods:

1. Direct jump: After the user enters a URL address in the browser, the server will directly return the corresponding page;
2. Redirect jump: After the user enters a URL address in the browser, the server returns a HTTP status code tells the browser that it needs to jump to another page.

The hidden address jump actually achieves the effect of hiding the URL address by processing the URL address on the server side and passing the URL address as a parameter to the real target URL address for jump. .

For example, we have a page address: http://www.example.com/page1.php, we need to hide it and let the user jump to http://www.example.com/page2.php page, we can achieve it through the following code:

<?php
header("Location: http://www.example.com/page2.php?from=page1");
?>

In the code, we use the PHP header() function to set the Location parameter is the target page address, and sets the parameter from that needs to be passed to page1, so that when the user jumps to the target page, we can do some special processing based on the passed parameters.

2. Usage of PHP hidden address jump

It is very simple to implement PHP hidden address jump, just use the header() function. Let me show you how to implement it:

1. Implement a simple jump:

<?php
header("Location: http://www.example.com/page2.php");
?>

In the code, we set the Location parameter to the target page address.

2. Realize jump with parameters:

<?php
header("Location: http://www.example.com/page2.php?from=page1");
?>

In the code, we added ?from=page1 after the target page address, so that the target page can be obtained The passed from parameter.

3. Realize delayed jump:

<?php
header("refresh:3;url=http://www.example.com/page2.php");
?>

In the code, we use the refresh parameter of the header() function to delay the page jump for 3 seconds, and Jump to the target page.

It should be noted that when using the header() function to jump, there cannot be any output on the page, otherwise the jump will fail. Therefore, it is recommended to use the ob_start() function at the beginning of the code to open the buffer to avoid output.

3. Summary

PHP hidden address jump is a very practical technology. Its implementation principle is very simple. You only need to use the header() function. . Using this technology, you can effectively protect the page address and prevent malicious attacks, while also providing a better user experience for the website.

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