public static function ConvertSimpleXmlElementObjectIntoArray($simpleXmlElementObject, &$recursionDepth = 0)
{
// Keep an eye on how deeply we are involved in recursion.
if ($recursionDepth > MAX_RECURSION_DEPTH_ALLOWED) {
// Fatal error. Exit now.
return null;
}
if ($recursionDepth == 0) {
if (get_class($simpleXmlElementObject) != SIMPLE_XML_ELEMENT_PHP_CLASS) {
// If the external caller doesn't call this function initially
// with a SimpleXMLElement object, return now.
return null;
} else {
// Store the original SimpleXmlElementObject sent by the caller.
// We will need it at the very end when we return from here for good.
$callerProvidedSimpleXmlElementObject = $simpleXmlElementObject;
}
}
// End of if ($recursionDepth == 0) {
if (is_object($simpleXmlElementObject) && get_class($simpleXmlElementObject) == SIMPLE_XML_ELEMENT_PHP_CLASS) {
// Get a copy of the simpleXmlElementObject
$copyOfsimpleXmlElementObject = $simpleXmlElementObject;
// Get the object variables in the SimpleXmlElement object for us to iterate.
$simpleXmlElementObject = get_object_vars($simpleXmlElementObject);
}
// It needs to be an array of object variables.
if (is_array($simpleXmlElementObject)) {
// Initialize the result array.
$resultArray = array();
// Is the input array size 0? Then, we reached the rare CDATA text if any.
if (count($simpleXmlElementObject) <= 0) {
// Let us return the lonely CDATA. It could even be whitespaces.
return trim(strval($copyOfsimpleXmlElementObject));
}
// Let us walk through the child elements now.
foreach ($simpleXmlElementObject as $key => $value) {
// When this block of code is commented, XML attributes will be
// added to the result array.
// Uncomment the following block of code if XML attributes are
// NOT required to be returned as part of the result array.
/*
if((is_string($key)) && ($key == SIMPLE_XML_ELEMENT_OBJECT_PROPERTY_FOR_ATTRIBUTES)) {
continue;
}
*/
// Let us recursively process the current element we just visited.
// Increase the recursion depth by one.
$recursionDepth++;
$resultArray[$key] = xml2json::ConvertSimpleXmlElementObjectIntoArray($value, $recursionDepth);
// Decrease the recursion depth by one.
$recursionDepth--;
}
// End of foreach($simpleXmlElementObject as $key=>$value) {
if ($recursionDepth == 0) {
// That is it. We are heading to the exit now.
// Set the XML root element name as the root [top-level] key of
// the associative array that we are going to return to the caller of this
// recursive function.
$tempArray = $resultArray;
$resultArray = array();
$resultArray[$callerProvidedSimpleXmlElementObject->getName()] = $tempArray;
}
return $resultArray;
} else {
// We are now looking at either the XML attribute text or
// the text between the XML tags.
return trim(strval($simpleXmlElementObject));
}
// End of else
}