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@ 2020-04-29T09:22:41Z

<?php

abstract class AbstractShipment 
{
    protected $id = null;
    protected $type = null;

    public function getPackageNumbersForm(int $id, string $type, string $errors, float $leftToPayAmount)
	{

		//return $this->packageNumber->getPackageNumbersForm( 
        var_dump(array(
			$id,
			$type,
			$errors,
			$leftToPayAmount
		));
	}
}

abstract class AbstractSpecificShipment extends AbstractShipment
{
    public function getPackageNumbersForm(string $errors = '', $leftToPayAmount = 0)
	{
		return parent::getPackageNumbersForm($this->id, $this->type, $errors, $leftToPayAmount);
	}
}

class OrderShipment extends AbstractSpecificShipment {
    public function __construct(int $orderId)
	{
		$this->id = $orderId;
        $this->type = 'order';
	}
}

$shipment = new OrderShipment((int)1);
$shipment->getPackageNumbersForm('error', 100);

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Declaration of AbstractSpecificShipment::getPackageNumbersForm(string $errors = '', $leftToPayAmount = 0) must be compatible with AbstractShipment::getPackageNumbersForm(int $id, string $type, string $errors, float $leftToPayAmount) in /in/sYtCe on line 23
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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