通过php搜索XML数据

I'm trying to search for data in a XML File using php. I'm not trying to get values of certain elements, I would use xpath if I wanted that.

我正在尝试使用php在XML文件中搜索数据。我不是想要获取某些元素的值，如果我想要的话，我会使用xpath。

This is an example of my XML file:

这是我的XML文件的一个示例：

<root>
<author>foo</author>
<date>bar</date>
</root>

Let's say my client wants to search for the words 'fab'. I want all strings with the character 'f' and 'b' and 'a' to return. So output would be:

假设我的客户想要搜索“fab”这个词。我想要所有带有字符'f'和'b'和'a'的字符串返回。所以输出将是：

Foo
bar

The author name could be James Westside for example.

例如，作者姓名可以是James Westside。

<author>James Westside</author>

And the user searched for jam it would return James Westside

并且用户搜索了它将返回James Westside

I hope my question is clear.

我希望我的问题很清楚。

1 个解决方案

#1

You should use PHP:s XMLReader class. XMLReader acts as a cursor going forward on the document stream and stopping at each node on the way.

您应该使用PHP：XMLReader类。 XMLReader充当游标在文档流上前进，并在途中停止在每个节点上。

Something like this:

像这样的东西：

$search_phrase = 'fab';

$xml = new XMLReader;
$xml->open('your-xml-file.xml');

while ($xml->read()) {
  $node = $xml->expand();

  /* Looping through all elements in the XML */

  /* Test if the current node is a text node: */
  if ($node->nodeType == XMLReader::TEXT) {

    /* Loop all letters in search_phrase */
    for ($i = 0; $i < strlen($search_phrase); $i++) {

      /* Test if the text in the text node is matching any letter i search_phrase: */
      if (strpos($node->nodeValue, substr($search_phrase, $i, 1)) !== false) {
        echo($node->nodeValue . "\n");
        break;
      }
    }
  }
}

#1