PHP解析xml格式数据工具类示例

 class ome_xml { /** * xml资源 * * @var    resource * @see    xml_parser_create() */ public $parser; /** * 资源编码 * * @var    string */ public $srcenc; /** * target encoding * * @var    string */ public $dstenc; /** * the original struct * * @access  private * @var    array */ public $_struct = array(); /** * Constructor * * @access    public * @param    mixed    [$srcenc] source encoding * @param    mixed    [$dstenc] target encoding * @return    void * @since */ function SofeeXmlParser($srcenc = null, $dstenc = null) { $this->srcenc = $srcenc; $this->dstenc = $dstenc; // initialize the variable. $this->parser = null; $this->_struct = array(); } /** * Parses the XML file * * @access    public * @param    string    [$file] the XML file name * @return    void * @since */ function xml2array($file) { //$this->SofeeXmlParser('utf-8'); $data = file_get_contents($file); $this->parseString($data); return $this-<i style="color:transparent">来源gaodai$ma#com搞$$代**码网</i>>getTree(); } function xml3array($file){ $data = file_get_contents($file); $this->parseString($data); return $this->_struct; } /** * Parses a string. * * @access    public * @param    string    data XML data * @return    void */ function parseString($data) { if ($this->srcenc === null) { $this->parser = xml_parser_create(); } else { if($this->parser = xml_parser_create($this->srcenc)) { return 'Unable to create XML parser resource with '. $this->srcenc .' encoding.'; } } if ($this->dstenc !== null) { @xml_parser_set_option($this->parser, XML_OPTION_TARGET_ENCODING, $this->dstenc) or die('Invalid target encoding'); } xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0);  // lowercase tags xml_parser_set_option($this->parser, XML_OPTION_SKIP_WHITE, 1);    // skip empty tags if (!xml_parse_into_struct($this->parser, $data, $this->_struct)) { /*printf("XML error: %s at line %d", xml_error_string(xml_get_error_code($this->parser)), xml_get_current_line_number($this->parser) );*/ $this->free(); return false; } $this->_count = count($this->_struct); $this->free(); } /** * return the data struction * * @access    public * @return    array */ function getTree() { $i = 0; $tree = array(); $tree = $this->addNode( $tree, $this->_struct[$i]['tag'], (isset($this->_struct[$i]['value'])) ? $this->_struct[$i]['value'] : '', (isset($this->_struct[$i]['attributes'])) ? $this->_struct[$i]['attributes'] : '', $this->getChild($i) ); unset($this->_struct); return $tree; } /** * recursion the children node data * * @access    public * @param    integer    [$i] the last struct index * @return    array */ function getChild(&$i) { // contain node data $children = array(); // loop while (++$i _count) { // node tag name $tagname = $this->_struct[$i]['tag']; $value = isset($this->_struct[$i]['value']) ? $this->_struct[$i]['value'] : ''; $attributes = isset($this->_struct[$i]['attributes']) ? $this->_struct[$i]['attributes'] : ''; switch ($this->_struct[$i]['type']) { case 'open': // node has more children $child = $this->getChild($i); // append the children data to the current node $children = $this->addNode($children, $tagname, $value, $attributes, $child); break; case 'complete': // at end of current branch $children = $this->addNode($children, $tagname, $value, $attributes); break; case 'cdata': // node has CDATA after one of it's children $children['value'] .= $value; break; case 'close': // end of node, return collected data return $children; break; } } //return $children; } /** * Appends some values to an array * * @access    public * @param    array    [$target] * @param    string    [$key] * @param    string    [$value] * @param    array    [$attributes] * @param    array    [$inner] the children * @return    void * @since */ function addNode($target, $key, $value = '', $attributes = '', $child = '') { if (!isset($target[$key]['value']) && !isset($target[$key][0])) { if ($child != '') { $target[$key] = $child; } if ($attributes != '') { foreach ($attributes as $k => $v) { $target[$key][$k] = $v; } } $target[$key]['value'] = $value; } else { if (!isset($target[$key][0])) { // is string or other $oldvalue = $target[$key]; $target[$key] = array(); $target[$key][0] = $oldvalue; $index = 1; } else { // is array $index = count($target[$key]); } if ($child != '') { $target[$key][$index] = $child; } if ($attributes != '') { foreach ($attributes as $k => $v) { $target[$key][$index][$k] = $v; } } $target[$key][$index]['value'] = $value; } return $target; } /** * Free the resources * * @access    public * @return    void **/ function free() { if (isset($this->parser) && is_resource($this->parser)) { xml_parser_free($this->parser); unset($this->parser); } } }