PHP xmlreader 到数组 [英] PHP xmlreader to array

问题描述

以下测试函数使用 PHP 的 xmlreader 读取 XML 文件，并返回一个包含 3 个值的二维数组(id"= key).

如何编辑代码以便用户名键和值也在数组中返回?(显示在最后)

ini_set('always_populate_raw_post_data', 'on');功能测试(){$request = $HTTP_RAW_POST_DATA;错误报告(E_ERROR | E_WARNING | E_PARSE)；$url = "http://site.xml";$reader = new XMLReader();$reader->open($url);;$var = 数组();$i = 0;$limit = 3;而 ($reader->read()){if ($reader->name == "id" && $reader->nodeType == XMLReader::ELEMENT){如果 ($i == $limit) 中断；而 ($reader->read()){if ($reader->nodeType == XMLReader::TEXT||$reader->nodeType == XMLReader::CDATA||$reader->nodeType == XMLReader::WHITESPACE||$reader->nodeType == XMLReader::SIGNIFICANT_WHITESPACE){$var[$i]["id"] = $reader->value;}else if ($reader->nodeType == XMLReader::END_ELEMENT && $reader->name == "id"){休息;}}$i++;}}$reader->close();echo '
';打印_r($var);echo '</pre>';}
test() 返回这个数组
数组([0] =>大批([id] =>345)[1] =>大批([id] =>123)[2] =>大批([id] =>789))
如何获取用户名键和值?
数组([0] =>大批([id] =>345[用户名] =>姓名1)[1] =>大批([id] =>123[用户名] =>姓名2)[2] =>大批([id] =>789[用户名] =>姓名3))
加入何塞的回答
//需要结束元素else if ($reader->nodeType == XMLReader::END_ELEMENT && $reader->name == "username"){休息;}
解决方案
这应该可行.
函数测试(){$request = $HTTP_RAW_POST_DATA;错误报告(E_ERROR | E_WARNING | E_PARSE)；$url = "http://site.xml";$reader = new XMLReader();$reader->open($url);;$var = 数组();$i = 0;$limit = 3;而 ($reader->read()){if (($reader->name == "id" || $reader->name == "username") && $reader->nodeType == XMLReader::ELEMENT){$name = $reader->name;如果 ($i == $limit) 中断；而 ($reader->read()){if ($reader->nodeType == XMLReader::TEXT||$reader->nodeType == XMLReader::CDATA||$reader->nodeType == XMLReader::WHITESPACE||$reader->nodeType == XMLReader::SIGNIFICANT_WHITESPACE){$var[$i][$name] = $reader->value;}else if ($reader->nodeType == XMLReader::END_ELEMENT && $reader->name == "id"){休息;}}if($name == "用户名")$i++;}}$reader->close();echo '
';打印_r($var);echo '</pre>';}
变化:
<块引用>
($reader->name == "id" ||$reader->name == "username")
$name = $reader->name;
$var[$i][$name] = $reader->value;
if($name == "用户名")$i++;
The following test function reads an XML file with PHP's xmlreader and returns a 2 dimensional array of 3 values ("id" = key).

How can you edit the code so that the username key and value is returned in the array also? (shown at the end)
ini_set('always_populate_raw_post_data', 'on');

function test()
{
    $request = $HTTP_RAW_POST_DATA;
    error_reporting(E_ERROR | E_WARNING | E_PARSE);
    $url = "http://site.xml";
    $reader = new XMLReader();
    $reader->open($url);;

    $var = array();
    $i = 0;
    $limit = 3;

    while ($reader->read()) 
    {
        if ($reader->name == "id" && $reader->nodeType == XMLReader::ELEMENT)
        {
            if ($i == $limit) break;
            while ($reader->read())
            {
                if ($reader->nodeType == XMLReader::TEXT
                    || $reader->nodeType == XMLReader::CDATA
                    || $reader->nodeType == XMLReader::WHITESPACE
                    || $reader->nodeType == XMLReader::SIGNIFICANT_WHITESPACE)
                {
                    $var[$i]["id"] = $reader->value;
                }
                else if ($reader->nodeType == XMLReader::END_ELEMENT && $reader->name == "id")
                {
                    break;
                }
             }
             $i++;
        }
    }
    $reader->close();

    echo '<pre>';
    print_r($var);
    echo '</pre>';
}
test() returns this array
Array
(
    [0] => Array
        (
            [id] => 345
        )

    [1] => Array
        (
            [id] => 123
        )

    [2] => Array
        (
            [id] => 789
        )
)
How do you also get username key and value?
Array
(
    [0] => Array
        (
            [id] => 345
            [username] => name1
        )

    [1] => Array
        (
            [id] => 123
            [username] => name2
        )

    [2] => Array
        (
            [id] => 789
            [username] => name3       
        )
)
Add to Jose's answer
// needed to end element
else if ($reader->nodeType == XMLReader::END_ELEMENT && $reader->name == "username")
{
    break;
}

解决方案
This should work.
function test()
{
    $request = $HTTP_RAW_POST_DATA;
    error_reporting(E_ERROR | E_WARNING | E_PARSE);
    $url = "http://site.xml";
    $reader = new XMLReader();
    $reader->open($url);;

    $var = array();
    $i = 0;
    $limit = 3;

    while ($reader->read()) 
    {
        if (($reader->name == "id" || $reader->name == "username") && $reader->nodeType == XMLReader::ELEMENT)
        {
        $name = $reader->name;
            if ($i == $limit) break;
            while ($reader->read())
            {
                if ($reader->nodeType == XMLReader::TEXT
                    || $reader->nodeType == XMLReader::CDATA
                    || $reader->nodeType == XMLReader::WHITESPACE
                    || $reader->nodeType == XMLReader::SIGNIFICANT_WHITESPACE)
                {
                    $var[$i][$name] = $reader->value;
                }
                else if ($reader->nodeType == XMLReader::END_ELEMENT && $reader->name == "id")
                {
                    break;
                }
             }

             if($name == "username")
        $i++;

        }
    }
    $reader->close();

    echo '<pre>';
    print_r($var);
    echo '</pre>';
}
CHANGES:

  
($reader->name == "id" ||
  $reader->name == "username")
  
  
$name = $reader->name;
  
  
$var[$i][$name] = $reader->value;
  
  
if($name == "username")
      $i++;


                        
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