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PHP

Sum SimpleXML XPath variable doesn't work

Hi Community,

For a friend of mine, I'm creating a PDF-View-Counter. Now I'm getting stuck at changing the "view" value from the XML. When I'm trying to sum the variable ($VAR++), doesn't work. What should I do?

PHP-Code:

<?php

//header('Content-type: application/pdf');

// PDF-Datei deklarieren

$datei = "pdf.pdf";

$xmldb = "db.xml";

$id = md5($datei);

$xml = simplexml_load_file($xmldb);

$views = $xml->xpath('/data/count[@id="'.$id.'"]/views');

$num = $views[0][0];

$num++;

echo $num;

//$fopen = fopen($xmldb, "wb"); 
//fwrite($fopen, $xml->asXML());
//fclose($fopen);

//readfile($datei);
?>

XML-Code:

<?xml version="1.0" encoding="UTF-8"?>
<data>
    <count id="883c7046854e04138c55680ffde90a61">
        <filename>s</filename>
        <views>1</views>
        <lastview>f</lastview>
    </count>
</data>

PS: I now that the Code is dirty but it was made in hurry.

Many thanks in advance,

Philip

1 Answer