我想在php中处理XML文件

Question

This is my XML file

<?xml version="1.0" encoding="UTF-8"?>
<searchresult>
  <query>file</query>
  <page-number>3</page-number>
  <start>20</start>
  <files-per-page>10</files-per-page>
  <files-approx-count>6361998</files-approx-count>
  <result-files>
    <file>
      <name>file 1</name>
      <description>
        descrp
      </description>
      <url>
        http://www.example.com
      </url>
    </file>
    <file>
      <name>file 2</name>
      <description>
        descrp 2
      </description>
      <url>
        http://www.example.com
      </url>
    </file>
  </result-files>
</search-result>

i tried the following code

$xml = simplexml_load_file("file.xml");
foreach ($xml as $xmls):
    $name =$xmls->name;
    $url =$xmls->url;
    echo $name.$url;
endforeach;

but no output please help.

Answer 1

First thing, your XML file is not well-formed. The root tag is <searchresult> while the last tag is </search-result> . This causes a parsing error.

Second thing, if your tags contain dashes, those tags cannot be used directly as variables with SimpleXML , in that case you should use a special syntax (see this: php simplexml_load_file with a dash ( - ) ). Other way to fix this is, if you control de XML syntax, change the way the XML is written and don't use dashes on tags.

Lastly, I think you want to print out the info of files within the result-files tag.

$xml = simplexml_load_file("file.xml");

foreach ($xml->{'result-files'}->file as $file) {
    printFile($file);
}

function printFile($file) {
    $name = trim($file->name);
    $url = trim($file->url);
    print "$name $url\n";
}

Output:

file 1 http://www.example.com
file 2 http://www.example.com

And you are done.

Answer 2

You're creating an object when you use the simplexml_load_file . The object isn't necessarily iterable - but it is indexable by tag names. try not doing the foreach(...) and instead just using echo $xml->name; . If that doesn't work, then perhaps you're looking in the wrong directory for your file. You likely need to do something like:

EDITED TO MATCH XML FILE PROVIDED

$path = $_SERVER['DOCUMENT_ROOT']."/file.xml";
$xml = simplexml_load_file($path);
echo $xml->start; //should output 20