Online PHP editor | rfc for RpMVW

@ 2015-12-02T02:10:20Z

<?php

interface ConfigValueInterface
{
    public function __toString();
}

interface ConfigWriterInterface
{
    
    public function write(ConfigValueInterface $value);
    
}

class WriteManager
{
    
    protected $writers = [];
    
    public function addWriter(ConfigWriterInterface $writer, $value_class)
    {
        $this->writers[$value_class] = $writer;
    }
    
    public function write(ConfigValueInterface $value)
    {
        $class = get_class($value);
        if (isset($this->writers[$class])) {
            $this->writers[$class]->write($value);
        }
    }
    
}

class BaseConfigValue implements ConfigValueInterface
{
    
    public $storage_location;
    
}

class BaseConfigWriter implements ConfigWriterInterface 
{
    
    public function write(BaseConfigValue $value)
    {
        echo "writing to {$value->storage_location}";
    }
    
}

// Set up manager
$manager = new WriteManager();
$manager->addWriter(new BaseConfigWriter, BaseConfigValue::class);

// $value = $generator->generate();
$manager->write($value);

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Class BaseConfigValue contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (ConfigValueInterface::__toString) in /in/RpMVW on line 35
Process exited with code 255.

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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