Is there any way to implement jump value transfer in PHP?-PHP Problem-php.cn

Is there any way to implement jump value transfer in PHP?

王林

Release： 2023-03-07 12:50:01

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The methods for php to implement jump value transfer are: 1. POST value transfer; 2. GET value transfer; 3. SESSION value transfer. SESSION is a type of global variable, which is often used to save common data such as user ID after a user logs in. It should be noted that the use of SESSION needs to be enabled in advance.

Is there any way to implement jump value transfer in PHP?

The methods are as follows:

(Learning video recommendation: java course)

1. POST value transfer

Post value transfer is a method used for HTML

form jump, which is very convenient to use. For example:

<html>
 <form action=&#39;&#39; method=&#39;&#39;>
 <input type=&#39;text&#39; name=&#39;name1&#39;>
 <input type=&#39;hidden&#39; name=&#39;name2&#39; value=&#39;value&#39;>
 <input type=&#39;submit&#39; value=&#39;提交&#39;>
 </form>
 </html>

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The action in the form is filled in with the url path of the jump page, and the method is filled in with the post method. After the submit button in the form is pressed, all the content with name in the form will be transferred to the filled in URL, which can be obtained through $_POST['name'], for example:

<?php
$a=$_POST[&#39;name1&#39;];
$b=$_POST[&#39;name2&#39;];
?>

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here A very convenient tip. When selecting type as 'hidden' in the input tag, the input tag will be hidden and will not be displayed on the page. However, if the input tag is in the form and has a name value and a value value, it will also follow The submit button is passed, and this hidden label can pass some content that you don't want to display.

2. GET value transfer

GET transfer value is passed by following the url. When the page jumps, it jumps with the url. Commonly used in the use of tags. For example:

<a href=&#39;delete.php?id=value&#39;>点我跳转</a>

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After jumping to xxx.php, you can get the passed value through $_GET['id']. The GET method is often used in URLs to delete or read a php file with a certain ID.

3. SESSION value transfer

SESSION is a type of global variable, which is often used to save common data such as user ID after the user logs in. Once saved to SESSION, other pages can be obtained through SESSION. To use SESSION, you need to open the session:

<?php
//session赋值
   session_start();
   $_SESSION[&#39;one&#39;]=value1;
   $_SESSION[&#39;two&#39;]=value2;
 
//session值的读取:
   $one = $_SESSION[&#39;one&#39;];
    
   //session值的销毁
   unset($_SESSION[&#39;one&#39;]);
?>

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