PHP 8.4 Release: What It Means for Developers

PHP 8.4 Release: Impact on Laravel and Magento

PHP 8.4 has been officially released with several language features that will change how developers write code in Laravel and Magento applications. The headline features are property hooks, asymmetric visibility, and a new HTML5-compliant DOM API.

Property Hooks

Property hooks allow defining getter and setter logic directly on class properties without separate methods:

class Product {
    public string $name {
        set => strtolower($value);
        get => ucfirst($this->name);
    }
}

For Magento modules with extensive getter/setter boilerplate, this dramatically reduces code volume while maintaining encapsulation.

Asymmetric Visibility

Properties can now have different visibility for reading and writing:

class Order {
    public private(set) string $status = 'pending';
}

Laravel Eloquent models and Magento data objects benefit from this pattern - public read access with controlled write access, without needing readonly constraints.

HTML5 DOM Support

The new Dom\HTMLDocument class properly handles HTML5 parsing, replacing the legacy DOMDocument which had known issues with modern HTML. This matters for Magento and WordPress projects that programmatically manipulate HTML content.

Upgrade Timeline

Laravel 11.x supports PHP 8.4 from day one. Magento 2.4.7+ has declared PHP 8.4 compatibility in its latest patch releases. Teams should begin testing their CI pipelines with PHP 8.4 and plan production upgrades for Q1 2026.

PHP 8.4 is a significant release that modernises the language while maintaining backward compatibility with well-structured codebases.