/**
* The main function for converting to an XML document.
* Pass in a multi dimensional array and this recrusively loops through and builds up an XML document.
*
* @static
* @param array $data
* @param string $rootNodeName - what you want the root node to be - defaultsto data.
* @param SimpleXMLElement $xml - should only be used recursively
* @return string XML
*/
public static function toXml($data, $rootNodeName = 'data', &$xml = NULL, $root_attributes = null)
{
if (is_null($xml)) {
$xml = new SimpleXMLElement('<' . $rootNodeName . ' ' . $root_attributes . ' />');
}
// loop through the data passed in.
foreach ($data as $key => $value) {
// if numeric key, assume array of rootNodeName elements
if (is_numeric($key)) {
$key = $rootNodeName;
}
// Check if is attribute
if ($key == TiendaArrayToXML::attr_arr_string) {
// Add attributes to node
foreach ($value as $attr_name => $attr_value) {
$xml->addAttribute($attr_name, $attr_value);
}
} else {
// delete any char not allowed in XML element names
$key = preg_replace('/[^a-z0-9\\-\\_\\.\\]/i', '', $key);
// if there is another array found recrusively call this function
if (is_array($value)) {
// create a new node unless this is an array of elements
$node = TiendaArrayToXML::isAssoc($value) ? $xml->addChild($key) : $xml;
// recrusive call - pass $key as the new rootNodeName
TiendaArrayToXML::toXml($value, $key, $node);
} else {
// add single node.
$value = htmlentities($value);
$xml->addChild($key, $value);
}
}
}
// pass back as string. or simple xml object if you want!
$dom = dom_import_simplexml($xml)->ownerDocument;
$dom->formatOutput = true;
return $dom->saveXML();
}
