get from this line

问题:

Hello guys im trying to get info from last.fm, i'm getting albums names and etc, but i want to get from line 2. how to get it?

<topalbums artist="Adele" page="1" perPage="1" totalPages="55092" total="55092">

^from here name, page, perpage and totalpages

<lfm status="ok">
<topalbums artist="Adele" page="1" perPage="1" totalPages="55092" total="55092">
<album>

<name>21</name>
<playcount>52308837</playcount>
<mbid>c45e0e0e-48c9-4441-aac3-2f2b34202d3c</mbid>
<url>https://www.last.fm/music/Adele/21</url>
<artist>

<name>Adele</name>
<mbid>cc2c9c3c-b7bc-4b8b-84d8-4fbd8779e493</mbid>
<url>https://www.last.fm/music/Adele</url>
</artist>
<image size="small">
https://lastfm-img2.akamaized.net/i/u/34s/c894af1e6a735b9bbb2a0312c7719f40.png
</image>
<image size="medium">
https://lastfm-img2.akamaized.net/i/u/64s/c894af1e6a735b9bbb2a0312c7719f40.png
</image>
<image size="large">
https://lastfm-img2.akamaized.net/i/u/174s/c894af1e6a735b9bbb2a0312c7719f40.png
</image>
<image size="extralarge">
https://lastfm-img2.akamaized.net/i/u/300x300/c894af1e6a735b9bbb2a0312c7719f40.png
</image>
</album>
</topalbums>
</lfm>

回答1:

$dom = new DOMDocument();
$dom->loadXML($xml);
$topAlbums = $dom->getElementsByTagName('topalbums')->item(0);
$artist = $topAlbums->getAttribute('artist');
echo $artist; // outputs Adele

回答2:

One basic way would be to use a regular expression:

preg_match('/artist="([^"]*)"\\s*page="([^"]*)"\\s*perPage="([^"]*)"\\s*totalPages="([^"]*)"/', $lastfm_input, $result);
# $result[1] = name value
# $result[2] = page value
# $result[3] = perPage value
# $result[4] = totalPages value

If the order of the attributes (like perPage) changes you have to use multiple regexes.

回答3:

Guys funnily i found best solution

<?php 
$attrs = $xml7->topalbums->attributes();
echo $attrs["total"];
?>