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POexport XML from mySQL with PHP
 

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  1. POexport XML from mySQL with PHP
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    <p>I have a bit of problem with my code at the moment and I hope you can help me with it.</p> <p>First of the tabels</p> <pre><code>SELECT artist, album, song FROM artist LEFT JOIN album on artist.artist_ID = album.artist_ID LEFT JOIN song on album.album_ID = song.album_ID ORDER BY artist.artist, album.album_ID, song.song_ID </code></pre> <p>Im trying to export it as an XML with help of php so im creating the XML direct in the document so i just can press a link to view and access the xml. But the problem im having is that the song dont stack under album. Instead they do this:</p> <pre><code>&lt;music&gt; &lt;artist name="$artist1"&gt; &lt;album name="$album1"&gt; &lt;song&gt;$song1&lt;/song&gt; &lt;/album&gt; &lt;/artist&gt; &lt;/music&gt; &lt;music&gt; &lt;artist name="$artist1"&gt; &lt;album name="$album1"&gt; &lt;song&gt;$song2&lt;/song&gt; &lt;/album&gt; &lt;/artist&gt; &lt;/music&gt; </code></pre> <p>I want then to stack like this: </p> <pre><code>&lt;music&gt; &lt;artist name="$artist1"&gt; &lt;album name="$album1"&gt; &lt;song&gt;$song1&lt;/song&gt; &lt;song&gt;$song2&lt;/song&gt; &lt;song&gt;$song3&lt;/song&gt; &lt;/album&gt; &lt;/artist&gt; &lt;/music&gt; </code></pre> <p>This is the PHP-code i use at the moment to export to XML, something dont work here. I have been trying to fix it the last 12 hours without luck. </p> <pre><code>$export = "&lt;?xml version=\"1.0\" encoding=\"UTF-8\" ?&gt;\n"; $export="&lt;myTunes&gt;"; while($row = mysqli_fetch_array($result)) { $export.="&lt;music&gt;"; $artist=$row["artist"]; $album=$row["album"]; $song=$row["song"]; $export.=" &lt;artist name='$artist'&gt; &lt;album name='$album'&gt; &lt;song&gt;$song&lt;/song&gt; &lt;/album&gt; &lt;/artist&gt;"; $export.="&lt;/music&gt;"; } $export.="&lt;/myTunes&gt;"; file_put_contents("export.xml", $export); echo "&lt;a href='export.xml' target='_blank'&gt;Export database as XML&lt;/a&gt;"; </code></pre> <p>Please help if you can, im starting to loose my mind over here. Best Regards, Chris</p>
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    1. COYou should consider using `DomDocument` or something similar to handle the actual XML output. Manipulating strings directly makes your code extremely ugly, and getting a nicely indented XML doc is challenging.
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      1. USSam Dufel
    2. COi agree, its really hard if i want to stack all the song under album. its easey if i have uniq items in each row.. i will look into how `DomDocuments` work and see if i can figure it out, thanks for the tip
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    3. CODon't write this your own. It has been done already. See [XML_Query2XML](http://pear.php.net/package/XML_Query2XML) it also has end-user documentation: http://query2xml.sourceforge.net/docs/ - Your benefit: The example the author gives is *a very similar* thing: Artists and Albums. http://query2xml.sourceforge.net/docs/html/XML_Query2XML/tutorial_XML_Query2XML.pkg.html#x_to_n
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