thanks t3od0r, that seems to have got me moving however im now faced with this error

Warning: DOMDocument:ave(test.xml) [domdocument.save]: failed to open stream: Permission denied in /var/www/class.array2xml2array.php on line 126 line

126 reads

if ($this->doc->save($XMLFile) == 0){

i assume its tryingt o save to a folder it doesnt have permission to. if this is the case how would i alter the folder inwhich it saves?