How to transfer array by jump address in php

PHP is a very powerful programming language with many practical functions and features. Among them, jumping to the page is a very common and important function. In the process of page jump, it is often necessary to pass some parameters, such as some user information or operation status, etc. This article will introduce how to transfer an array by jump address in PHP.

In actual projects, we usually use the header function or redirection function to jump to the page. Both methods can pass parameters. The difference is that the header function jumps directly, while the redirect function jumps after processing in the cache, which requires one more step. These two methods will be introduced separately below.

Use the header function to implement jump transfer array:

The header function is a very basic function in PHP, which can be used to set HTTP header information to achieve page jumps. The following are the steps to use the header function to implement jump transfer array:

1. Define an array.

$arr = array('name'=>'Stephen', 'age'=>26);

2. Convert the array into string format.

$str = base64_encode(serialize($arr));

Here we use the serialize and base64_encode functions to convert the array into string format. This ensures that no information is lost when passing parameters.

3. Splice jump address.

$url = 'http://www.example.com?info=' . $str;

Here, the converted array information is spliced ​​into the jump address.

4. Jump.

header('Location: ' . $url);
exit();

Finally use the header function to jump to the specified address and end all previous output. After jumping to the next page, we can use the unserialize and base64_decode functions to restore the string to the original data.

Use the redirection function to implement jump transfer array:

In addition to using the header function, we can also use a redirection function header_redirect of PHP to implement jump transfer parameters. The following are the steps to use the header_redirect function to implement jump transfer array:

1. Define an array.

$arr = array('name'=>'Stephen', 'age'=>26);

2. Convert the array into string format.

$str = base64_encode(serialize($arr));

Here we also use the serialize and base64_encode functions to convert the array into string format.

3. Define a jump address variable.

$url = 'http://www.example.com/somepage.php';

4. Set redirection parameters.

$params = array('info'=>$str);

Here the converted array information is stored in the $params array in the form of parameters.

5. Redirect.

require_once 'HTTP/Redirect.php';

$redirect = new HTTP_Redirect($url, $params);
$redirect->send();

Finally use the HTTP_Redirect class for redirection operations. Here you need to first import the Redirect class with require_once, then instantiate a $redirect object and use its send method to redirect. After jumping to the next page, we can also use the unserialize and base64_decode functions to restore the string to the original data.

Summary:

Through the above two methods, we can successfully transfer array data when making page jumps. Which method to choose depends on the project needs and your own skill level. No matter which method you use, you need to pay attention to safety. When transmitting sensitive information, the data needs to be encrypted to avoid data leakage. At the same time, you also need to pay attention to handling exceptions during jumps to ensure normal operation.

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