xml2array.php

<?php

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); 
}