How to implement jump page in php

In PHP, page jumps can be achieved by using the header() function, which can send HTTP header information to the client, which contains jump instructions to achieve page jumps.

When using the header() function to jump to a page, you need to pay attention to the following points:

1. The calling position of the header() function should be before all output, otherwise it will cause headers already sent error.
2. When jumping in the header() function, relative paths should be used instead of absolute paths or URL addresses directly.
3. After jumping, you need to use the exit() or die() function to terminate the execution of the script.

The following is a sample code that demonstrates how to jump to a page in PHP:

<?php
// 跳转到指定的页面
header("Location: page.php");
exit();
?>

In this example, the header() function specifies the jump location: page. php, this file should be the relative path in the folder where the current file is located. After executing the header() function, use the exit() function to stop script execution to ensure that the jump can proceed normally.

If you need to pass parameters when jumping, you can do it through query string. For example:

<?php
// 向page.php传递name和age两个参数
header("Location: page.php?name=John&age=18");
exit();
?>

In this example, the two parameters name and age are used in the query string, and the assigned values ​​are John and 18 respectively. In page.php, you can obtain these parameters through the $_GET array:

<?php
// 获取传递过来的参数
$name = $_GET[&#39;name&#39;];
$age = $_GET[&#39;age&#39;];

echo "您好，".$name."，您的年龄是".$age."岁。";
?>

Of course, if you need to perform some special jump operations, such as using POST method to jump (such as login jump), etc., It can also be implemented using corresponding methods. Generally speaking, jumping to a page in PHP is relatively simple, and you only need to be familiar with the use of the header() function.

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