class XMLParser {
public $data;
public $vals;
public $collapse_dups = 1;
public $index_numeric = 0;
/**
* Initialize the parser and store the XML data to be parsed.
*/
function __construct($data)
{
$this->data = $data;
}
/**
* Build a tree based structure based from the parsed data
*
* @return array The tree based structure
*/
function get_tree()
{
$parser = xml_parser_create();
xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 0);
xml_parser_set_option($parser,XML_OPTION_CASE_FOLDING,0);
if(!xml_parse_into_struct($parser, $this->data, $vals, $index))
{
return false;
}
$i = -1;
return $this->get_children($vals, $i);
}
/**
* Private: Build a completed tag by fetching all child nodes and attributes
*
* @param array Array of values from the current tag
* @param array Array of child nodes
* @param int Internal counter
* @param string Type of tag. Complete is a single line tag with attributes
* @return array Completed tag array
*/
function build_tag($thisvals, $vals, &$i, $type)
{
$tag = array('tag' => $thisvals['tag']);
if(isset($thisvals['attributes']))
{
$tag['attributes'] = $thisvals['attributes'];
}
if($type == "complete")
{
if(isset($thisvals['value']))
{
$tag['value'] = $thisvals['value'];
}
}
else
{
$tag = array_merge($tag, $this->get_children($vals, $i));
}
return $tag;
}
/**
* Fetch the children for from a specific node array
*
* @param array Array of children
* @param int Internal counter
* @return array Array of child nodes
*/
function get_children($vals, &$i)
{
$children = array();
if($i > -1 && isset($vals[$i]['value']))
{
$children['value'] = $vals[$i]['value'];
}
while(++$i < count($vals))
{
$type = $vals[$i]['type'];
if($type == "cdata")
{
$children['value'] .= $vals[$i]['value'];
}
elseif($type == "complete" || $type == "open")
{
$tag = $this->build_tag($vals[$i], $vals, $i, $type);
if($this->index_numeric)
{
$tag['tag'] = $vals[$i]['tag'];
$children[] = $tag;
}
else
{
$children[$tag['tag']][] = $tag;
}
}
else if($type == "close")
{
break;
}
}
if($this->collapse_dups)
{
foreach($children as $key => $value)
{
if(is_array($value) && (count($value) == 1))
{
$children[$key] = $value[0];
}
}
}
return $children;
}
}
/**
* Kill off unnecessary tags and return a clean array of XML data
*
* @param array Array of parsed XML data
* @return array Cleaned array of XML data
*/
function kill_tags($array)
{
foreach($array as $key => $val)
{
if($key == "tag" || $key == "value")
{
unset($array[$key]);
}
else if(is_array($val))
{
// kill any nested tag or value indexes
$array[$key] = kill_tags($val);
// if the array no longer has any key/val sets
// and therefore is at the deepest level, then
// store the string value
if(count($array[$key]) <= 0)
{
$array[$key] = $val['value'];
}
}
}
return $array;
| class XMLParser extends MyBBXMLParser {
|