Online PHP editor | rfc for e2i77

@ 2014-10-24T20:47:16Z

<?php

interface DataTransferObject
{
	public static function fromParams(array $params);

    public function asArray();
}

trait ImmutableFromParams
{
    private $mutable = true;

    private function __construct(array $params)
    {
        foreach ($params as $key => $value)
        {
            $this->{'set' . str_replace(' ', '', ucwords(str_replace('_', ' ', $key)))}($value);
        }
		
		unset($this->mutable);
    }

    public static function fromParams(array $params)
    {
        return new static($params);
    }

    public function __call($method, $args)
    {
        if (isset($this->mutable) && substr($method, 0, 3) == 'set' && property_exists($this, lcfirst(substr($method, 3))))        
		{
            $this->{lcfirst(substr($method, 3))} = reset($args);
        }
    }
}

abstract class Command
{
	use ImmutableFromParams;

    public function asArray()
    {
        return get_object_vars($this);
    }
}

final class MyCommand extends Command implements DataTransferObject
{
    protected $foo;
    protected $bar;

    protected function setBar($value)
	{
         $this->bar = $value;
	}
}

$foo = MyCommand::fromParams(array('foo' => 'foo', 'bar' => 'bar', 'meh' => 'meh'));

$foo->setFoo('newfoo');
$foo->setDog('dog');

var_dump($foo->asArray());

Output for git.master, git.master_jit, rfc.property-hooks: array(2) { ["foo"]=> string(3) "foo" ["bar"]=> string(3) "bar" }

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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