Online PHP editor | rfc for bTCRW

@ 2025-05-13T12:42:59Z

<?php

enum TaskType
{
    case DISTANCE;
    case TIME;
    case WORKLOAD;
    
    public function visit(TaskProgressCalculator $calculator)
    {
        match($this) {
            TaskType::DISTANCE => $calculator->calculateForDistance(),
            TaskType::TIME => $calculator->calculateForTime(),
            TaskType::WORKLOAD => $calculator->calculateForWorkload(),
        };
    }
}

class TaskProgressCalculator
{
    public function calculateProgressFor(TaskType $task): void
    {
        $task->visit($this);
    }
    
    public function calculateForDistance(): void
    {
        echo "Calculating distance progress\n";
    }
    
    public function calculateForTime(): void
    {
        echo "Calculating time progress\n";
    }
    
    public function calculateForWorkload(): void
    {
        echo "Calculating workload progress\n";
    }
}

$calculator = new TaskProgressCalculator;

$calculator->calculateProgressFor(TaskType::WORKLOAD);
$calculator->calculateProgressFor(TaskType::TIME);
$calculator->calculateProgressFor(TaskType::DISTANCE);

Output for git.master, git.master_jit: Calculating workload progress Calculating time progress Calculating distance progress

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2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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