一尘不染

将while循环生成的xml分配给变量

mysql

我正在使用while循环创建XML,但是现在我需要在生成的XML之前加上XML标头信息和包装器标签,但我正努力使其正常工作,这是我的代码,

$result = mysql_query("SELECT * FROM users")
or die(mysql_error());

$row = mysql_fetch_array($result);

    while ($row = mysql_fetch_array($result)) {
        $pumaXML  = "<userDetails>";
        $pumaXML .= "<userID>".$row['uid']."</userID>";
        $pumaXML .= "<userName>".$row['userName']."</userName>";
        $pumaXML .= "<points>".$row['points']."</points>";
        $pumaXML .= "<imageURL>".$row['imageURL']."</imageURL>";
        $pumaXML .= "<thumbURL>".$row['thumbURL']."</thumbURL>";
        $pumaXML .= "</userDetails>";
    };

我似乎找不到解决方法,我也尝试制作一个函数,但是效果并不理想,这里是代码,

function createXML($result) {
    while ($row = mysql_fetch_array($result)) {
        $pumaXML  = "<userDetails>";
        $pumaXML .= "<userID>".$row['uid']."</userID>";
        $pumaXML .= "<userName>".$row['userName']."</userName>";
        $pumaXML .= "<points>".$row['points']."</points>";
        $pumaXML .= "<imageURL>".$row['imageURL']."</imageURL>";
        $pumaXML .= "<thumbURL>".$row['thumbURL']."</thumbURL>";
        $pumaXML .= "</userDetails>";
    };
    return $pumaXML;
};

提前感谢!


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2020-05-17

共1个答案

一尘不染

这是使用DOM的方法

function createUserDetailsXml(array $result) {

    $dom  = new DOMDocument;
    $dom->formatOutput = TRUE; // enable automatic indenting
    $dom->loadXML('<users/>'); // set root node

    foreach($result as $row) {

        // create user-details node
        $user = $dom->createElement('user-details');

        // create and append details to user-details node
        $user->appendChild(
            $dom->createElement('user-id', $row['uid']));
        $user->appendChild(
            $dom->createElement('user-name', $row['userName']));
        $user->appendChild(
            $dom->createElement('user-points', $row['points']));
        $user->appendChild(
            $dom->createElement('image-url', $row['imageURL']));
        $user->appendChild(
            $dom->createElement('thumb-url', $row['thumbURL']));

        // add user-details node to XML document, e.g. users node
        $dom->documentElement->appendChild($user);
    };
    return $dom->saveXML(); // returns the formatted XML
};

请注意,该函数希望您传递完整的结果数组,因此我可以使用以下方法进行测试:

$result = array(
    array(
        'uid'      => 1,
        'userName' => 'Gordon',
        'points'   => PHP_INT_MAX,
        'imageURL' => 'http://example.com/gordon.jpg',
        'thumbURL' => 'http://example.com/t_gordon.jpg'
    ),
    array(
        'uid'      => 2,
        'userName' => 'John <blink>"Frigging"</blink> Doe',
        'points'   => 0,
        'imageURL' => 'http://example.com/johndoe.jpg',
        'thumbURL' => 'http://example.com/t_johndoe.jpg'
    )
);
echo createUserDetailsXml($result);

该函数将返回

<?xml version="1.0"?>
<users>
  <user-details>
    <user-id>1</user-id>
    <user-name>Gordon</user-name>
    <user-points>2147483647</user-points>
    <image-url>http://example.com/gordon.jpg</image-url>
    <thumb-url>http://example.com/t_gordon.jpg</thumb-url>
  </user-details>
  <user-details>
    <user-id>2</user-id>
    <user-name>John &lt;blink&gt;"Frigging"&lt;/blink&gt; Doe</user-name>
    <user-points>0</user-points>
    <image-url>http://example.com/johndoe.jpg</image-url>
    <thumb-url>http://example.com/t_johndoe.jpg</thumb-url>
  </user-details>
</users>

请注意,DOM自动为您转义了John Doe名称中的特殊字符。DOM还将确保XML元素名称(或属性,如果使用它们)在语法上是有效的。它还添加了XML
Prolog。

2020-05-17