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@ 2014-12-15T16:00:04Z

<?php

$xml = <<<'XML'
<?xml version="1.0"?>
<books>
    <book>
        <isbn>123456789098</isbn>
        <title>Harry Potter</title>
        <author>J K. Rowling</author>
        <edition>2005</edition>
    </book>
    <book>
        <placeItHere></placeItHere>
        <isbn>1</isbn>
        <title>stuffs</title>
        <author>DA</author>
        <edition>2014</edition>
    </book>
</books>
XML;

$book = [
    'isbn'    => 123456789099,
    'title'   => 'Harry & Potter 3',
    'author'  => 'J K. Rowling',
    'edition' => '2007'
];

$dom = new DOMDocument();
$dom->formatOutput = true;
$dom->preserveWhiteSpace = false;
$dom->loadXML($xml);
$xpath = new DOMXPath($dom);

$placeItHere = $xpath->query('/books/book/placeItHere')->item(0);
$newBook = $placeItHere->appendChild($dom->createElement('book'));
foreach ($book as $part => $value) {
    $element = $newBook->appendChild($dom->createElement($part, $value));
}

echo $dom->saveXML();

Output for git.master, git.master_jit, rfc.property-hooks: Warning: DOMDocument::createElement(): unterminated entity reference Potter 3 in /in/cSeiv on line 38 <?xml version="1.0"?> <books> <book> <isbn>123456789098</isbn> <title>Harry Potter</title> <author>J K. Rowling</author> <edition>2005</edition> </book> <book> <placeItHere> <book> <isbn>123456789099</isbn> <title/> <author>J K. Rowling</author> <edition>2007</edition> </book> </placeItHere> <isbn>1</isbn> <title>stuffs</title> <author>DA</author> <edition>2014</edition> </book> </books>

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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