Скачать или смотреть Resolving null Response from Laravel's Carbon::now() on Ubuntu Server

Discover how to fix the issue of Laravel's Carbon::now() method returning null on your Ubuntu server due to PHP version mismatch.
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This video is based on the question https://stackoverflow.com/q/62658729/ asked by the user 'Eyad Jaabo' ( https://stackoverflow.com/u/10883261/ ) and on the answer https://stackoverflow.com/a/62660333/ provided by the user 'Eyad Jaabo' ( https://stackoverflow.com/u/10883261/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Troubleshooting Laravel Carbon's Null Responses on Ubuntu Server

Running a Laravel application on an Ubuntu server can sometimes lead to unexpected issues, such as the Carbon::now() method returning null or getting null values for dates retrieved from your database. This guide will address a common problem faced by developers working in this environment and provide a clear solution to it.

The Problem Statement

Imagine you are working on your Laravel application locally, and everything appears to be functioning perfectly. You execute the following code to retrieve user data:

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However, when you deploy your application to an Ubuntu server, you experience an unexpected result. Instead of receiving valid created_at values, you see null values in the response.

This issue can cause your application to behave incorrectly, as you are unable to capture necessary timestamps. Below is an example of the response you might see from the server:

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Additionally, when you try to call Carbon::now(), you find that it returns null as well. This behavior is puzzling, but it can be narrowed down to some underlying factors.

Understanding the Cause

The problem often arises due to the PHP version installed on your server. Laravel and the Carbon library rely on specific PHP functionalities that may not be compatible with all versions. In many cases, different environments regulate PHP versions that can lead to discrepancies between your local setup and the server.

PHP Versions: Key Differences

PHP 7.4: Introduces improvements and deprecations that may impact older code.

PHP 7.2: Offers compatibility with many Laravel features and Carbon functionalities that might not behave as expected in newer versions.

Solution: Downgrading PHP Version

To resolve this problem, the recommended approach is to change your PHP version from 7.4 to 7.2 on your Ubuntu server. This step ensures that your Laravel application and the Carbon library functionalities are executed as intended. Here's how you can do it:

Step-by-step Guide to Change PHP Version

Check Current PHP Version:
Run the following command to see your current PHP version:

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Install PHP 7.2 (if not already installed):
You can install PHP 7.2 with the following commands:

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Switch the PHP Version:
Update your server to use PHP 7.2:

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Verify PHP Version Again:
After making the change, check the PHP version again to ensure it's now set to 7.2:

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Conclusion

By following the steps above, you should be able to resolve the issue of Carbon::now() returning null on your Ubuntu server, allowing you to retrieve user timestamps without any problems. The primary takeaway is understanding how PHP version discrepancies can affect your application and how a simple downgrade can lead to expected behaviors.

If you're still facing issues after changing the PHP version, consider checking your server configuration and logs for additional debugging information.

Now that your application is running smoothly, you can continue building out the features your users expect!