How to modify the php listening address bar

With the development of Internet technology, more and more websites and applications use the PHP language when building. When implementing web page interaction in PHP, we usually need to monitor the browser's address bar to implement different functions based on different parameters. This article will introduce how to modify the PHP listening address bar to make it more flexible and efficient.

1. Principle of address bar monitoring

In PHP, we can obtain the URL address and request information of the current page through the $_SERVER variable, and judge the user's operations and requests based on this information. All request parameters in the address bar are stored in the $_GET array. We can obtain the value of the corresponding parameter through $_GET['parameter name']. For example, if we enter: http://www.example.com/index.php?id=123 in the address bar, then in the php script, we can get the value of 123 through $_GET['id'].

2. Modify the listening address

Since the default listening address of PHP is "/", when we enter a URL in the address bar, it is actually index.php in the root directory. file to monitor. This default listening address may cause some problems. For example, when we have multiple pages that need to monitor the address bar, conflicts will occur. In order to solve this problem, we can modify the listening address of PHP to make it more flexible and convenient.

1. Use .htaccess file

.htaccess file is a server configuration file, usually used to modify or set the configuration options of the directory. In the .htaccess file, we can modify the listening address of php through the following code:

RewriteEngine On
RewriteBase /
RewriteRule ^(.*) $ index.php?url=$1 [QSA,L]

In the .htaccess file, we turn on Apache’s url rewriting function through RewriteEngine On, which allows us Modify the address bar listening path more flexibly.

Note: It should be noted that using the .htaccess file for modification may have a certain impact on server performance, so it needs to be used with caution.

2. Modify through the php.ini file

The php.ini file is the configuration file of php, which controls various parameters and settings of php. Global settings for PHP can be made by modifying the php.ini file, so that all PHP web pages will take effect.

In the php.ini file, we can modify the following parameters to control the listening path of the address bar:

;cgi.force_redirect = 1
;cgi.redirect_status_env = "REDIRECT_STATUS"

Modify to:

cgi.force_redirect = 0
cgi.redirect_status_env = "REDIRECT_STATUS"

By modifying the parameters in the php.ini file, we can turn off php Automatic redirection function, allowing PHP to monitor the address bar more freely.

3. Summary

By modifying the listening address of PHP, we can more flexibly control PHP's address bar monitoring, making website development more efficient and convenient. Whether you are using .htaccess files or modifying php.ini files, you need to operate with caution to avoid affecting website performance and stability.

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