Tips & tricks

Small idioms with a big payoff.

match expression

A switch that returns a value and compares strictly.

$label = match (true) {
    $status >= 500 => 'server error',
    $status >= 400 => 'client error',
    $status >= 200 => 'ok',
    default        => 'unknown',
};   // strict comparison, no fall-through, returns a value

Promotion, nullsafe and named arguments

Less boilerplate, safer chains, self-documenting calls.

final class User
{
    public function __construct(        // constructor property promotion (8.0)
        public readonly int $id,
        public readonly string $email,
    ) {}
}

$country = $order?->customer?->address?->country;   // nullsafe operator (8.0)
$user = new User(email: 'a@b.com', id: 7);          // named arguments (8.0)

Backed enums with methods

Replace class constants and magic strings.

enum Status: string
{
    case Draft = 'draft';
    case Published = 'published';

    public function label(): string
    {
        return ucfirst($this->value);
    }
}

Status::from('draft')->label();   // "Draft"

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