Скачать или смотреть Resolving PHPStan Error in Laravel 10: Handling Timestamps with Carbon

Learn how to resolve the `PHPStan` error related to property types in Laravel 10 by correctly handling timestamps using Carbon. Our guide walks you through two straightforward solutions for a seamless experience!
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This video is based on the question https://stackoverflow.com/q/77919820/ asked by the user 'Zabs' ( https://stackoverflow.com/u/218725/ ) and on the answer https://stackoverflow.com/a/77920074/ provided by the user 'silver' ( https://stackoverflow.com/u/1319623/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Understanding the PHPStan Error in Laravel 10

If you’re developing a Laravel 10 application and utilizing PHPStan for static analysis, you might run into certain type compatibility errors. One common issue that developers face is the error message indicating a type mismatch for properties. Specifically, you may encounter an error that states:

[[See Video to Reveal this Text or Code Snippet]]

In this guide, we will dive into this problem, its causes, and offer you actionable solutions to fix it.

The Problem Breakdown

Context of the Error

In the provided example, a property called succeeded_at is defined in the Report model, which is expected to be of type Carbon\Carbon or null. However, the value assigned to this property is an integer timestamp, which PHPStan flags as incompatible. This discrepancy arises when the data (succeeded_at) is fetched from a webhook event and is typically represented in UNIX timestamp format, as shown:

[[See Video to Reveal this Text or Code Snippet]]

The Code Snippet

Here is a relevant portion of the code where the error occurs:

[[See Video to Reveal this Text or Code Snippet]]

In this line, if succeeded_at is an integer timestamp, PHPStan will not accept it because it is expecting an instance of Carbon\Carbon.

Solutions to Resolve the Issue

Option 1: Convert Timestamp to Carbon Instance

One effective way to address this issue is to convert the integer timestamp to a Carbon\Carbon instance before assigning it to the succeeded_at property.

Here is how you can do that:

[[See Video to Reveal this Text or Code Snippet]]

By utilizing Carbon::createFromTimestamp(), you convert the integer timestamp into an appropriate Carbon date, which PHPStan will accept and interpret correctly.

Option 2: Change Property Casting

Another approach is to alter how the succeeded_at property is cast in your Report model by treating it as a timestamp rather than a datetime. You can change the casting as follows:

[[See Video to Reveal this Text or Code Snippet]]

By casting succeeded_at to timestamp, you align its expected type with the actual format of the incoming data (the integer timestamp), thereby resolving the type mismatch issue flagged by PHPStan.

Conclusion

By implementing either of the solutions above, you can effectively resolve the PHPStan error concerning the succeeded_at property in your Laravel 10 application. As a best practice, always ensure that the types you use match what is expected in your models to maintain compatibility and reduce errors.

Feel free to choose the option that best fits your application’s architecture or preferences! If you have further questions or need assistance, feel free to reach out in the comments.