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Editorial Team
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Asked: 2026-05-25T20:15:15+00:00

I need to add a self-closing tag to XML file with DOM in PHP,

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I need to add a self-closing tag to XML file with DOM in PHP, but I don’t know how, because standardly, this tag looks like this:

<tag></tag>

But it should look like this:

<tag/>
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1 Answer

  1. Editorial Team

    DOM will do that automatically for you

    $dom = new DOMDocument;
$dom->appendChild($dom->createElement('foo'));
echo $dom->saveXml();

    will give by default

    <?xml version="1.0"?>
<foo/>

    unless you do

    $dom = new DOMDocument;
$dom->appendChild($dom->createElement('foo'));
echo $dom->saveXml($dom, LIBXML_NOEMPTYTAG);

    which would then give

    <?xml version="1.0" encoding="UTF-8"?>
<foo></foo>
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