Use empty string if no resource_identifier found

[dotsam]

$this->resource_identifier is checked with a strlen(), and if null, this now throws an error in PHP 8.1+

[github-actions]

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[gemini-code-assist]

Summary of Changes

Hello @dotsam, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a compatibility issue with PHP 8.1+ by modifying the RestCommand class. The change ensures that the resource_identifier property is always initialized to an empty string if no identifier is parsed from the route, rather than null. This prevents TypeError exceptions that would occur when strlen() is called on a null value in newer PHP versions, thereby improving the application's robustness and stability.

Highlights

• PHP 8.1+ Compatibility: Updated the RestCommand class to ensure compatibility with PHP 8.1 and newer versions by preventing null values from being assigned to $this->resource_identifier.
• Null to Empty String Assignment: Changed the assignment of $this->resource_identifier from null to an empty string '' when no resource identifier is found during object construction.

Changelog

• inc/RestCommand.php
  • Ensured resource_identifier is initialized to an empty string instead of null to prevent PHP 8.1+ errors.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[gemini-code-assist]

Code Review

The pull request correctly addresses a PHP 8.1+ compatibility issue where passing null to strlen() results in a deprecation warning. By initializing $this->resource_identifier to an empty string instead of null in the RestCommand constructor, the code ensures that the call to strlen() in get_base_route() is safe. This change maintains the existing logic while ensuring compatibility with newer PHP versions. No other issues were identified in the modified code.