PHP XML to Array

xml2array

function xml2array($contents, $get_attributes=1) {
    if(!$contents) return array();

    if(!function_exists('xml_parser_create')) {
        //print "'xml_parser_create()' function not found!";
        return array();
    }
    //Get the XML parser of PHP - PHP must have this module for the parser to work
    $parser = xml_parser_create();
    xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, 0 );
    xml_parser_set_option( $parser, XML_OPTION_SKIP_WHITE, 1 );
    xml_parse_into_struct( $parser, $contents, $xml_values );
    xml_parser_free( $parser );

    if(!$xml_values) return;//Hmm...

    //Initializations
    $xml_array = array();
    $parents = array();
    $opened_tags = array();
    $arr = array();

    $current = &$xml_array;

    //Go through the tags.
    foreach($xml_values as $data) {
        unset($attributes,$value);//Remove existing values, or there will be trouble

        //This command will extract these variables into the foreach scope
        // tag(string), type(string), level(int), attributes(array).
        extract($data);//We could use the array by itself, but this cooler.

        $result = '';
        if($get_attributes) {//The second argument of the function decides this.
            $result = array();
            if(isset($value)) $result['value'] = $value;

            //Set the attributes too.
            if(isset($attributes)) {
                foreach($attributes as $attr => $val) {
                    if($get_attributes == 1) $result['attr'][$attr] = $val; //Set all the attributes in a array called 'attr'
                    /**  :TODO: should we change the key name to '_attr'? Someone may use the tagname 'attr'. Same goes for 'value' too */
                }
            }
        } elseif(isset($value)) {
            $result = $value;
        }

        //See tag status and do the needed.
        if($type == "open") {//The starting of the tag '<tag>'
            $parent[$level-1] = &$current;

            if(!is_array($current) or (!in_array($tag, array_keys($current)))) { //Insert New tag
                $current[$tag] = $result;
                $current = &$current[$tag];

            } else { //There was another element with the same tag name
                if(isset($current[$tag][0])) {
                    array_push($current[$tag], $result);
                } else {
                    $current[$tag] = array($current[$tag],$result);
                }
                $last = count($current[$tag]) - 1;
                $current = &$current[$tag][$last];
            }

        } elseif($type == "complete") { //Tags that ends in 1 line '<tag />'
            //See if the key is already taken.
            if(!isset($current[$tag])) { //New Key
                $current[$tag] = $result;

            } else { //If taken, put all things inside a list(array)
                if((is_array($current[$tag]) and $get_attributes == 0)//If it is already an array...
                        or (isset($current[$tag][0]) and is_array($current[$tag][0]) and $get_attributes == 1)) {
                    array_push($current[$tag],$result); // ...push the new element into that array.
                } else { //If it is not an array...
                    $current[$tag] = array($current[$tag],$result); //...Make it an array using using the existing value and the new value
                }
            }

        } elseif($type == 'close') { //End of tag '</tag>'
            $current = &$parent[$level-1];
        }
    }

    return($xml_array);
}