php进行XML格式数据的方法

本篇文章主要介绍php进行xml格式数据的方法，感兴趣的朋友参考下，希望对大家有所帮助。

具体如下：

 $val) {
        if ($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 ''
      $parent[$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 ($type == "complete") { // Tags that ends in 1 line ''
      // See if the key is already taken.
      if (!isset($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 ''
      $current = &$parent[$level-1];
    } 
  } 
  return($xml_array);
} 
// Array to XML
class array2xml {
  public $output = "\n";
  public $sub_item = array();
  public function __construct($array) {
    $sub_item = array();
    $this->output .= $this->xmlmake($array);
  } 
  public function xmlmake($array, $fk = '') {
    $xml = '';
    global $sub_item;
    foreach ($array as $key => $value) {
      if (is_array($value)) {
        if (is_numeric($key)) {
          $this->sub_item=array_merge($this->sub_item,array($fk));
          $xml .= "<{$fk}>" . $this->xmlmake($value, $key) . "";
        } else {
          $xml .= "<{$key}>" . $this->xmlmake($value, $key) . "";
        } 
      } else {
        $xml .= "<{$key}>{$value}\n";
      } 
    } 
    return $xml;
  } 
  public function output(){
    foreach($this->sub_item as $t){
      $this->output = str_replace("<{$t}><{$t}>","<{$t}>",$this->output);
      $this->output = str_replace("","",$this->output);
    }
    return $this->output;
  }
}

总结：以上就是本篇文的全部内容，希望能对大家的学习有所帮助。

相关推荐：

PHP中如何获取用户IP地址

SmartB2B行业电子商务

SmartB2B 是一款基于PHP、MySQL、Smarty的B2B行业电子商务网站管理系统，系统提供了供求模型、企业模型、产品模型、人才招聘模型、资讯模型等模块，适用于想在行业里取得领先地位的企业快速假设B2B网站，可以运行于Linux与Windows等多重服务器环境，安装方便，使用灵活。 系统使用当前流行的PHP语言开发，以MySQL为数据库，采用B/S架构，MVC模式开发。融入了模型化、模板

下载

立即学习“PHP免费学习笔记（深入）”；

PHP垃圾回收机制的相关问题

PHP的变量及日期处理案例