How to query php running environment information

PHP is a widely used programming language for creating dynamic websites and Internet applications. Running PHP code requires installing the PHP running environment. If you want to know how to query your PHP running environment, this article will provide you with some useful information and steps.

Step One: Check PHP Version

It is important to know what PHP version you are running to determine if you need to update or upgrade your PHP version. To check your PHP version, follow these steps:

1. Open your web browser and visit your website or application.
2. Right-click an empty space on any page and select Inspect Element (Chrome) or Inspect (Firefox).
3. Click the "Network" or "Network Requests" tab and refresh the page.
4. Find the file with the request URL "index.php" or similar and click on it.
5. In the Response tab, you will see the version information returned by PHP.

Step 2: Query PHP configuration information

PHP has many configuration options that can be set to better suit your web application needs . To query PHP's configuration information, follow these steps:

1. Open your web browser and visit your website or application.
2. Create a new PHP file containing the following code:

<?php
phpinfo();
?>

3. In your web browser, access this file.
4. You will see complete PHP configuration information, including all options and values.

Step 3: Query the PHP module

The PHP module contains many functions and extensions, such as image processing, database connection, etc. Understanding the installation and status of PHP modules is important to ensure your application is functioning properly. To query a PHP module, follow these steps:

1. Open your web browser and visit your website or application.
2. Create a new PHP file containing the following code:

<?php
foreach(get_loaded_extensions() as $extension) {
  echo $extension."
";
}
?>

3. In your web browser, access this file.
4. You will see a list of all loaded PHP modules.

Step 4: Use the command line to query PHP information

In some cases, you may need to use the command line to query PHP information. On Unix or Linux systems, you can use the following command to query the PHP version:

$ php -v

To query PHP configuration information, use the following command:

$ php -i

If you are running PHP on a Windows system, you can Open a command line window and enter the following command to query the PHP version:

C:\> php -v

To query PHP configuration information, use the following command:

C:\> php -i

Summary

It is important to understand your PHP operating environment to ensure that your application can be deployed and run correctly. This article shows you some methods to query the PHP running environment, including querying the PHP version, PHP configuration information, PHP modules and using the command line. Hope this information is helpful to you.

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