Autocomplete for PHP 8+ typed signatures in mixed HTML/PHP files

In Adobe Dreamweaver the autocomplete engine provides context-aware suggestions for PHP code, but its handling of modern PHP 8+ syntax such as typed parameters, return types, and union types is inconsistent across project configurations.

The 'Enable Hints for Server-Side Scripts' preference must be active, yet even with it enabled the IDE may fail to parse newer language constructs unless the appropriate language definition files are updated, and the behavior can differ between Design View and Code View; custom hint files may be overwritten by IDE updates, and framework-specific syntax may remain unrecognized.

Which Dreamweaver language definition file must be edited or extended to make the autocomplete recognize PHP 8+ typed parameters and return types? Does disabling Design View improve the accuracy of server-side code completion for PHP files that mix HTML markup with modern PHP syntax? Is there a supported method to refresh or reload hinting data after a Dreamweaver version upgrade without manually re-editing the language files?