CSLXmlReader.class.php
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<?php
class CSLXmlReader {
var $tagstack;
var $xmlvals;
var $xmlvarArrPos;
var $xmlfile;
function CSLXmlReader($filename) // constructor to intialize the stack and val array
{
$this->tagstack = array(); // contain the open tags till now
$this->xmlvals = array();
$this->xmlvarArrPos = $this->xmlvals; // temporary variable to hold the current tag position
$this->xmlfile = $filename;
}
function readDatabase()
{
// read the XML database
$data = implode("", file($this->xmlfile));
$parser = xml_parser_create();
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
xml_parse_into_struct($parser, $data, $values, $tags);
xml_parser_free($parser);
$tagStackPointer = 0;
foreach($values as $key => $val) //
{
if($val['type'] == "open")
{
array_push($this->tagstack, $val['tag']);
$this->getArrayPath();
if(count($this->xmlvarArrPos) > 0 && (!array_key_exists(0,$this->xmlvarArrPos)))
{
$temp1 = $this->xmlvarArrPos;
$this->xmlvarArrPos = array();
$this->xmlvarArrPos[0] = $temp1;
array_push($this->tagstack, 1);
}
else if(count($this->xmlvarArrPos) && array_key_exists(0,$this->xmlvarArrPos)){
$opncount = count($this->xmlvarArrPos);
array_push($this->tagstack, $opncount);
}
$tagStackPointer += 1;
}else if($val['type'] == "close")
{
while( $val['tag'] != ($lastOpened = array_pop($this->tagstack))){}
}else if($val['type'] == "complete")
{
$this->getArrayPath();
if(count($this->xmlvarArrPos) && array_key_exists($val['tag'],$this->xmlvarArrPos))
{
if(array_key_exists(0,$this->xmlvarArrPos[$val['tag']]))
{
$elementCount = count($this->xmlvarArrPos[$val['tag']]);
$this->xmlvarArrPos[$val['tag']][$elementCount] = $val['value'];
}else
{
$temp1 = $this->xmlvarArrPos[$val['tag']];
$this->xmlvarArrPos[$val['tag']] = array();
$this->xmlvarArrPos[$val['tag']][0] = $temp1;
$this->xmlvarArrPos[$val['tag']][1] = $val['value'];
}
} else
{
$this->xmlvarArrPos[$val['tag']] = isset($val['value']) ? $val['value'] : null;
}
}
}
reset($this->xmlvals);
return $this->xmlvals;
}
function getArrayPath()
{
reset($this->xmlvals);
$this->xmlvarArrPos = &$this->xmlvals;
foreach($this->tagstack as $key)
{
$this->xmlvarArrPos = &$this->xmlvarArrPos[$key];
}
}
}
?>