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@ 2015-12-01T19:08:17Z

<?php
function converTo($date, $format = 'Y-m-d', $default = null, callable $funcExc = null )
    {
        if (empty($date)) {
            return $default;
        }
        if (!is_string($format)) {
            throw new \InvalidArgumentException("Неверный формат");
        }
        try {
            if (!($date instanceof \DateTime)) {
                if (is_numeric($date) && ( strlen($timestamp) == 13 || strlen($timestamp) == 10 )) {
                    $date = new \DateTime("@" . $date);
                } elseif (is_string($date) && (strtotime($date) !== false)) {
                    $date = new \DateTime("@" . strtotime($date));
                } elseif(is_string($date)) {
                    $date = new \DateTime($date);
                } else {
                    throw new \InvalidArgumentException("Не удалось распознать формат входящей даты");
                }
            }
            if(!($date = $date->format($format))) {
                throw new \InvalidArgumentException("Произошла ошибка при приведению к заданному формату: " . $format);
            }
        } catch (\Exception $e) {
            if ($funcExc !== null) {
                call_user_func($funcExc, $date);
            }
            throw $e;
        }
        
        return $date->format($format) ;
    }
var_dump(converTo(['asda']));
die;

abstract class T
{
    static public $instanses;
    
    final private function __construct(){
        
    }
    
    public static function getInstance()
    {
        if (!(static::$instanses instanceof static)) {
            static::$instanses = new static;
        }
        
        return static::$instanses;
    }
}

class A extends T
{
    static public $instanses;
}

class B extends A
{
    static public $instanses;
}

$t = A::getInstance();
var_dump($t);

$t1 = B::getInstance();
var_dump($t1);

new B();

?>

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught InvalidArgumentException: Не удалось распознать формат входящей даты in /in/MWd1K:19 Stack trace: #0 /in/MWd1K(34): converTo(Array) #1 {main} thrown in /in/MWd1K on line 19
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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