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@ 2018-10-26T12:32:54Z

<?php

class DomainName 
{
   
    private $name;
    private $escapedName;

    public function __construct($name)
    {
       
        $decodeUnicodeName = static::decodeUnicode($name);
        $this->name = $decodeUnicodeName;
        $this->escapedName = static::escapeDomainName($decodeUnicodeName);
    }

    public function containsSubdomain()
    {
        return substr_count($this->name, '.') >= 2;
    }

    public static function escapeDomainName($name)
    {
        return preg_replace('/\./', '-', $name);
    }

    public static function decodeUnicode(string $name): string
    {
        return preg_replace_callback('/\\\\u([0-9a-fA-F]{4})/', function ($match) {
            return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UCS-2BE');
        }, $name);
    }

    public function __toString(): string
    {
        return (string)$this->name;
    }
}

$name = 'apotheke-altenessen-s\u00fcd.de';
$test = new DomainName($name);


print_r($test->name);

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught Error: Cannot access private property DomainName::$name in /in/2YlaP:44 Stack trace: #0 {main} thrown in /in/2YlaP on line 44
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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