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@ 2014-08-06T18:21:55Z

<?php

class MySimpleXMLElement extends SimpleXMLElement
{

public function appendXML($append)
    {
        if ($append) {
            if (strlen(trim((string)$append)) == 0) {
                $xml = $this->addChild($append->getName());
            } else {
                $xml = $this->addChild($append->getName(), (string)$append);
            }

            foreach ($append->children() as $child) {
                $xml->appendXML($child);
            }

            foreach ($append->attributes() as $n => $v) {
                $xml->addAttribute($n, $v);
            }
        }
    }
}

$currentPayment = new SimpleXMLElement('<payment></payment>');
$currentPayment->addChild('creditCard');
$currentPayment->creditCard->addChild('cardNumber', 'XXXX0027');
$currentPayment->creditCard->addChild('expirationDate', 'XXXX');

$paymentProfile = new MySimpleXMLElement('<paymentProfile></paymentProfile>');

$paymentProfile->appendXML($currentPayment);

echo $paymentProfile->asXML();

Output for git.master, git.master_jit, rfc.property-hooks: <?xml version="1.0"?> <paymentProfile><payment><creditCard><cardNumber>XXXX0027</cardNumber><expirationDate>XXXX</expirationDate></creditCard></payment></paymentProfile>

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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