Override

Description: Indicates that a method or property is intended to override a declaration in a parent class or interface. A compile-time error is emitted if no matching parent declaration exists.

Namespace: Built-in PHP (no import required)

Since: PHP 8.3 (methods), PHP 8.5 (properties)

Usage

class Base
{
    protected function handle(): void {}
}

class Child extends Base
{
    #[\Override]
    protected function handle(): void
    {
        // Guaranteed to override Base::handle()
    }
}

If the parent method doesn't exist, PHP emits a fatal error:

class Child extends Base
{
    #[\Override]
    protected function typoInName(): void {} // Fatal error: no matching parent method
}

With properties (PHP 8.5+)

class Base
{
    protected string $name;
}

class Child extends Base
{
    #[\Override]
    protected string $name = 'default';
}

Note: Cannot be used on __construct().

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