XML以字符串保存在SQL（PHP）

Question

我得到一個simplexml變量存儲一個xml文件，我需要做的是將其轉換爲字符串，然後將其保存在SQL數據庫文件中，我試過：

echo $xml->asXML(); 

但它只顯示我的標籤的內容，我需要得到所有的結構來保存它。

有沒有辦法從PHP中的XML變量中獲取完整字符串？

在此先感謝

Answer 1

好有人在這裏說，簡單地使用

$test = $xml_variable->asXML(); 

它會將整個xml存儲在$ test變量中，唯一的問題是當您回顯它時，它只會顯示標籤值，而不是標籤本身。這就是爲什麼我沒有工作。

無論如何，我更新了我的sql表中的xml字段，它填充了格式良好的xml字符串。

Answer 2

您可以使用PHP的XML解析功能。

php.net/manual/en/function.xml-parse.php#87920

<?php 
function xml2array($url, $get_attributes = 1, $priority = 'tag') 
{ 
    $contents = ""; 
    if (!function_exists('xml_parser_create')) 
    { 
     return array(); 
    } 
    $parser = xml_parser_create(''); 
    if (!($fp = @ fopen($url, 'rb'))) 
    { 
     return array(); 
    } 
    while (!feof($fp)) 
    { 
     $contents .= fread($fp, 8192); 
    } 
    fclose($fp); 
    xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "UTF-8"); 
    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... 
    $xml_array = array(); 
    $parents = array(); 
    $opened_tags = array(); 
    $arr = array(); 
    $current = & $xml_array; 
    $repeated_tag_index = array(); 
    foreach ($xml_values as $data) 
    { 
     unset ($attributes, $value); 
     extract($data); 
     $result = array(); 
     $attributes_data = array(); 
     if (isset ($value)) 
     { 
      if ($priority == 'tag') 
       $result = $value; 
      else 
       $result['value'] = $value; 
     } 
     if (isset ($attributes) and $get_attributes) 
     { 
      foreach ($attributes as $attr => $val) 
      { 
       if ($priority == 'tag') 
        $attributes_data[$attr] = $val; 
       else 
        $result['attr'][$attr] = $val; //Set all the attributes in a array called 'attr' 
      } 
     } 
     if ($type == "open") 
     { 
      $parent[$level -1] = & $current; 
      if (!is_array($current) or (!in_array($tag, array_keys($current)))) 
      { 
       $current[$tag] = $result; 
       if ($attributes_data) 
        $current[$tag . '_attr'] = $attributes_data; 
       $repeated_tag_index[$tag . '_' . $level] = 1; 
       $current = & $current[$tag]; 
      } 
      else 
      { 
       if (isset ($current[$tag][0])) 
       { 
        $current[$tag][$repeated_tag_index[$tag . '_' . $level]] = $result; 
        $repeated_tag_index[$tag . '_' . $level]++; 
       } 
       else 
       { 
        $current[$tag] = array (
         $current[$tag], 
         $result 
        ); 
        $repeated_tag_index[$tag . '_' . $level] = 2; 
        if (isset ($current[$tag . '_attr'])) 
        { 
         $current[$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") 
     { 
      if (!isset ($current[$tag])) 
      { 
       $current[$tag] = $result; 
       $repeated_tag_index[$tag . '_' . $level] = 1; 
       if ($priority == 'tag' and $attributes_data) 
        $current[$tag . '_attr'] = $attributes_data; 
      } 
      else 
      { 
       if (isset ($current[$tag][0]) and is_array($current[$tag])) 
       { 
        $current[$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 
       { 
        $current[$tag] = array (
         $current[$tag], 
         $result 
        ); 
        $repeated_tag_index[$tag . '_' . $level] = 1; 
        if ($priority == 'tag' and $get_attributes) 
        { 
         if (isset ($current[$tag . '_attr'])) 
         { 
          $current[$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') 
     { 
      $current = & $parent[$level -1]; 
     } 
    } 
    return ($xml_array); 
} 
?> 

Answer 3

也許嘗試的DomDocument：

$xml = new DomDocument(); 
$xml->loadXML($xml_str); 
echo $xml->saveXML(); 

供參考：http://us.php.net/manual/en/domdocument.loadxml.php