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@ 2017-07-13T20:17:54Z

<?php

abstract class Hash
{
    protected $algo;
    
    private $bytes;
    protected $data;
    
    public function __construct(string $data)
    {
        $this->bytes = strlen(hash($this->algo, '', true));
        $this->data = $data;
    }
    
    public function getRaw() : string
    {
        return $this->data;
    }
    
    public function getHex() : string
    {
        return bin2hex($this->data);
    }
    
    public function getBase64() : string
    {
        return base64_encode($this->data);
    }
    
    public static function fromHex(string $data) : Hash
    {
        return new static(hex2bin($data));
    }
    
    public static function fromBase64(string $data) : Hash
    {
        return new static(base64_decode($data));
    }

    public static function getClass(string $algo) : string
    {
        $prefix = ucfirst(strtolower($algo));
        $class = implode('\\', [__NAMESPACE__, "${prefix}Hash"]);
        return $class;
    }
}

final class Md5Hash extends Hash { protected $algo = 'md5'; }
final class Sha256Hash extends Hash { protected $algo = 'sha256'; }
final class Sha512Hash extends Hash { protected $algo = 'sha512'; }

foreach(explode('|', 'md5|sha256|sha512') as $a){
    $submitted[$a] = hash($a, 'foobar');
}

foreach($submitted as $algo => $hexVal){
    $hashes[] = (Hash::getClass($algo))::fromHex($hexVal);
}

var_dump($hashes);

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /in/bSBD0 on line 44 array(3) { [0]=> object(Md5Hash)#1 (3) { ["algo":protected]=> string(3) "md5" ["bytes":"Hash":private]=> int(16) ["data":protected]=> string(16) "8X�"0�<�_0fC�?" } [1]=> object(Sha256Hash)#2 (3) { ["algo":protected]=> string(6) "sha256" ["bytes":"Hash":private]=> int(32) ["data":protected]=> string(32) "ë��7 譐G�9Fk<�t��8=J9`qL��" } [2]=> object(Sha512Hash)#3 (3) { ["algo":protected]=> string(6) "sha512" ["bytes":"Hash":private]=> int(64) ["data":protected]=> string(64) " P&�9�+�&�g<U��4-R2�=3�aj�i�X|�c_i%�l60��'5�>�$%" } }

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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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