- php教程首页
- php函数
php xml转换成数组
•php函数•阅读 419 - //调用方法:
- $array = xml2array(file_get_contents('feed.xml', 1, 'attribute'));
- */
- function xml2array($contents, $get_attributes=1, $priority = 'tag') {
- if(!$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_target_encoding, "utf-8"); # http://minutillo.com/steve/weblog/2004/6/17/php-xml-and-character-encodings-a-tale-of-sadness-rage-and-data-loss
- xml_parser_set_option($parser, xml_option_case_folding, 0);
- xml_parser_set_option($parser, xml_option_skip_white, 1);
- xml_parse_into_struct($parser, trim($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; //refference
- //go through the tags.
- $repeated_tag_index = array();//multiple tags with same name will be turned into an array
- foreach($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 = array();
- $attributes_data = array();
- if(isset($value)) {
- if($priority == 'tag') $result = $value;
- else $result['value'] = $value; //put the value in a assoc array if we are in the 'attribute' mode
- }
- //set the attributes too.
- if(isset($attributes) and $get_attributes) {
- foreach($attributes as $attr => $val) {
- if($priority == 'tag') $attributes_data[$attr] = $val;
- else $result['attr'][$attr] = $val; //set all the attributes in a array called 'attr'
- }
- }
- //see tag status and do the needed.
- if($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] = $result;
- if($attributes_data) $current[$tag. '_attr'] = $attributes_data;
- $repeated_tag_index[$tag.'_'.$level] = 1;
- $current = &$current[$tag];
- } else { //there was another element with the same tag name
- if(isset($current[$tag][0])) {//if there is a 0th element it is already an array
- $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result;
- $repeated_tag_index[$tag.'_'.$level]++;
- } else {//this section will make the value an array if multiple tags with the same name appear together
- $current[$tag] = array($current[$tag],$result);//this will combine the existing item and the new item together to make an array
- $repeated_tag_index[$tag.'_'.$level] = 2;
- if(isset($current[$tag.'_attr'])) { //the attribute of the last(0th) tag must be moved as well
- $current[$tag]['0_attr'] = $current[$tag.'_attr'];
- unset($current[$tag.'_attr']);
- }
- }
- $last_item_index = $repeated_tag_index[$tag.'_'.$level]-1;
- $current = &$current[$tag][$last_item_index];
- }
- } 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;
- $repeated_tag_index[$tag.'_'.$level] = 1;
- if($priority == 'tag' and $attributes_data) $current[$tag. '_attr'] = $attributes_data;
- } else { //if taken, put all things inside a list(array)
- if(isset($current[$tag][0]) and is_array($current[$tag])) {//if it is already an array...
- // ...push the new element into that array.
- $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result;
- if($priority == 'tag' and $get_attributes and $attributes_data) {
- $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data;
- }
- $repeated_tag_index[$tag.'_'.$level]++;
- } 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
- $repeated_tag_index[$tag.'_'.$level] = 1;
- if($priority == 'tag' and $get_attributes) {
- if(isset($current[$tag.'_attr'])) { //the attribute of the last(0th) tag must be moved as well
- $current[$tag]['0_attr'] = $current[$tag.'_attr'];
- unset($current[$tag.'_attr']);
- }
- if($attributes_data) {
- $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data;
- }
- }
- $repeated_tag_index[$tag.'_'.$level]++; //0 and 1 index is already taken
- }
- }
- } elseif($type == 'close') { //end of tag '</tag>'
- $current = &$parent[$level-1];
- }//开源代码phpfensi.com
- }
- return($xml_array);
- }
- #########################################################################################################
- class parserxml
- {
- function parserxml()
- {
- }
- function parserxmlbyurl($url)
- {
- $fp = @fopen($url,'r');
- if (!$fp){
- return 1;
- }
- $xmlstr = fread($fp,1024);
- @fclose($fp);
- if ($xmlstr === false){
- return 0;
- }
- return $this->getxmltree($xmlstr);
- }
- function getxmltree($xmldata)
- {
- ini_set ('track_errors', '1');
- $xmlreaderror = false;
- $parser = xml_parser_create();
- xml_parser_set_option ($parser, xml_option_skip_white, 1);
- xml_parser_set_option ($parser, xml_option_case_folding, 0);
- if (!xml_parse_into_struct ($parser, $xmldata, $vals, $index)) {
- $xmlreaderror = true;
- return 0;
- }
- xml_parser_free($parser);
- if(!$xmlreaderror){
- $result = array ();
- $i = 0;
- if (isset($vals[$i]['attributes'])){
- foreach (array_keys ($vals [$i]['attributes']) as $attkey)
- $attributes[$attkey] = $vals[$i]['attributes'][$attkey];
- }
- $result[$vals [$i]['tag']] = array_merge((array)$attributes, $this->getchildren($vals, $i, 'open'));
- }
- ini_set('track_errors', '0');
- return $result;
- }
- function getchildren ($vals, &$i, $type)
- {
- if ($type == 'complete') {
- if (isset ($vals [$i]['value']))
- return ($vals [$i]['value']);
- else
- return '';
- }
- $children = array ();
- while ($vals [++$i]['type'] != 'close') {
- $type = $vals [$i]['type'];
- if (isset ($children [$vals [$i]['tag']])) {
- if (is_array ($children [$vals [$i]['tag']])) {
- $temp = array_keys ($children [$vals [$i]['tag']]);
- if (is_string ($temp [0])) {
- $a = $children [$vals [$i]['tag']];
- unset ($children [$vals [$i]['tag']]);
- $children [$vals [$i]['tag']][0] = $a;
- }
- } else {
- $a = $children [$vals [$i]['tag']];
- unset ($children [$vals [$i]['tag']]);
- $children [$vals [$i]['tag']][0] = $a;
- }
- $children [$vals [$i]['tag']][] = $this->getchildren ($vals, $i, $type);
- } else
- $children [$vals [$i]['tag']] = $this->getchildren ($vals, $i, $type);
- if (isset ($vals [$i]['attributes'])) {
- $attributes = array ();
- foreach (array_keys ($vals [$i]['attributes']) as $attkey)
- $attributes [$attkey] = $vals [$i]['attributes'][$attkey];
- if (isset ($children [$vals [$i]['tag']])) {
- if ($children [$vals [$i]['tag']] == '') {
- unset ($children [$vals [$i]['tag']]);
- $children [$vals [$i]['tag']] = $attributes;
- }
- elseif (is_array ($children [$vals [$i]['tag']])) {
- $index = count ($children [$vals [$i]['tag']]) - 1;
- if ($children [$vals [$i]['tag']][$index] == '') {
- unset ($children [$vals [$i]['tag']][$index]);
- $children [$vals [$i]['tag']][$index] = $attributes;
- }
- $children [$vals [$i]['tag']][$index] = array_merge ($children [$vals [$i]['tag']][$index], $attributes);
- } else {
- $value = $children [$vals [$i]['tag']];
- unset ($children [$vals [$i]['tag']]);
- $children [$vals [$i]['tag']]['value'] = $value;
- $children [$vals [$i]['tag']] = array_merge ($children [$vals [$i]['tag']], $attributes);
- }
- } else
- $children [$vals [$i]['tag']] = $attributes;
- }
- }
- return $children;
- ?>