<?php
$test_array = array (
'bla' => 'blub',
'foo' => 'bar',
'another_array' => array (
'stack' => 'overflow',
),
);
$xml = new SimpleXMLElement('<root/>');
array_walk_recursive($test_array, array ($xml, 'addChild'));
print $xml->asXML();
results in
<?xml version="1.0"?>
<root>
<blub>bla</blub>
<bar>foo</bar>
<overflow>stack</overflow>
</root>
keys and values are swapped - you could fix that with
array_flip()
before the array_walk.
array_walk_recursive
requires PHP 5. you could use
array_walk
instead, but you won't get
'stack' => 'overflow'
in the xml then.