我有一个 simplexml 变量,它存储一个 xml 文件,我需要做的就是将其转换为字符串,然后将其保存在 SQL 数据库文件中,我试过:
echo $xml->asXML();
但它只显示标签的内容,我需要获取所有结构来保存它。
有没有办法从 PHP 中的 XML 变量中获取完整的字符串?
提前致谢
好的,就像有人说的那样,只需使用
$test = $xml_variable->asXML();
它将整个 xml 存储在 $test 变量中,唯一的问题是,当您回显它时,它只会显示标签值,而不是标签本身。这就是为什么我认为它不起作用。
无论如何,我更新了我的 sql 表中的 xml 字段,并用格式正确的 xml 字符串填充它。
您可以使用 php xml 解析功能。
php.net/manual/en/function.xml-parse.php#87920
<?php
function xml2array($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);
}
?>
也许试试 DomDocument:
$xml = new DomDocument();
$xml->loadXML($xml_str);
echo $xml->saveXML();