You can check which extensions are used by PHP by viewing the phpinfo() function output, using command line tools, and checking the PHP configuration file. 1. View the phpinfo() function output, create a simple PHP script, save this script as phpinfo.php, and upload it to your web server. Access this file in the browser and use the browser's search function. Just look for the keyword "extension" or "extension_loaded" on the page to find information about the extension.
The operating environment of this tutorial: windows10 system, php8.1.3 version, DELL G3 computer.
PHP is a very popular server-side scripting language that is widely used in the field of web development. It has a large library of extensions that provide a variety of functions and features to help developers build web applications more efficiently. However, sometimes we may not know which extensions are used in our PHP projects. This article will introduce some methods that can help you find out which extensions are used in your PHP project.
Method 1: View the phpinfo() function output
A simple and fast method is to get information about the PHP configuration and currently installed extensions by calling the phpinfo() function Information. This function returns an HTML page containing PHP details.
You can create a simple PHP script like this:
phpinfo(); ?>
Save this script as phpinfo.php and upload it to your web server. Then, access this file in your browser and you will see a page with various PHP information, including loaded extensions. You can find information about extensions by using your browser's search function and looking for the keywords "extension" or "extension_loaded" in the page.
Method 2: Use command line tools
If you are using the command line interface to manage PHP projects, you can use some command line tools to obtain extended information.
First, you can use the php command line tool to get the list of loaded extensions. Open a terminal or command prompt and enter the following command:
php -m
This will list all loaded extensions. You can perform further processing if desired, such as exporting the results to a file.
Another useful command line tool is pecl, which can be used to manage and install PHP extensions. You can enter the following command to view the installed extensions:
pecl list
Method 3: Check the PHP configuration file
All installed extensions are recorded in the PHP configuration file php.ini Enabled extensions. You can find this file in PHP's configuration folder, usually under the PHP installation directory. Open the php.ini file and search the file for the keyword "extension" and you will find some lines starting with ";extension", which represent disabled extensions. These extensions can be enabled by removing the ";" at the beginning of the line.
If you cannot find the php.ini file, or for certain extensions you are not sure whether they are enabled or not, you can try creating a simple PHP script like this:
var_dump(get_loaded_extensions()); ?>
Will Save this script as test.php and upload it to your web server. Access this file in your browser and you will see a list of loaded extensions.
Summary
When developing a PHP project, it is very important to understand the extensions currently used. This article describes several methods that can help you find out which extensions are used in your PHP project, including viewing the phpinfo() function output, using command line tools, and inspecting PHP configuration files. Through these methods, you can better understand your PHP project and make relevant configurations and adjustments as needed. .
The above is the detailed content of How to check which extensions are used in php. For more information, please follow other related articles on the PHP Chinese website!

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