Php SimpleXMLElement add child tags

Question

I have a question regarding addChild in SimpleXMLElement. Just a clarifing one.

This piece of code:

$Xml = new SimpleXMLElement("<test></test>");
$Xml->addChild("child");
echo $Xml->asXML();

produces:

<?xml version="1.0"?> <test><child/></test>

My question is why it doesnt produce this?->

<?xml version="1.0"?> <test><child></child></test>

If I give "child" some value it shows up correctly. Im just trying to figure out why it works this way and if I have to worry about that.

Thank you all for the input.

Answer 1

If there's no contents in the tag there is no point to having the full notation. It's just a simple optimization.

There's nothing to worry about.